Nice auction you have going.
A) - 0.01
B) - 0.008

Who is going to find the house? Unless you're only going to accept micro bets with micro/capped payouts 2-3 BTC is nowhere near enough to keep the house funded. You're going to need a lot (and a lot of lots) more than that.
If you're really serious and think your casino can be profitable then I suggest you finish building it and then go to investors in order to sell some equity. Until then nobody is going to invest in something that has no evidence of its existence, competitive edge or legal framework for that matter.

Using escrow should cover any doubt that buyers have. It would also be useful to post time stamped pictures of the items that you are selling to prove that you actually have the items in hand.
When selling to trusted members you're ultimately increasing the trust on your end (in terms of having a reputable buyer). That's not necessarily needed as the Escrow covers your end too so you could accept orders from new-member buyers too (although that's at your discretion).
In terms of trust, anyone can give it as long as it is well founded. Following the transactions you make, buyers can leave you trust detailing the transaction as well as total amount risked etc.

This is a form of arbitrage. Technically it would work although I'm pretty sure that most exchanges have practices in place that prevent you from being able to play the markets. That being said you could use more than one exchange to get the desired results although things could change (price fluctuations) in the time it takes to confirm and process the withdrawal.

It doesn't matter what the trading price is as ultimately you'd be getting the same amount of BTC wherever it is sent.
If the amount is significant then it's probably better not to send it to an exchange wallet but rather a wallet where you can control the private keys. Once you have the funds there you could then send any amount to different wallets and exchanges of your choosing.

Where does the smart contract part come in?
Will the ICO mean the company would go public or that people who buy in the ICO are then entitled to company shares?

Indeed. They are regarded more as art pieces than physical storage. The only way of redeeming the bars would be to destroy them due to various security implementations that Kialara has used.
If you do load your Kialaras, when you resell them you could always ask for the amount loaded on top of the total asking price but it won't attract a higher premium. If anything it would lower the pool of potential buyers as they'd have to pay more for something which has the BTC locked away.

What rate are you after? I could do this if the rate is competitive. Thanks

I thought these sold out a while ago (unless I'm mistaken). If not, then I'd be in for buying one (depending on pricing of course).

Quite neat. In essence it's the same as opening a trade on localbitcoins (using a bank transfer as payment) but with a shapeshift kind of level of simplicity. I like it!
UI would still need some work as it does seems a little too plain with not enough depth.
How would pricing work? Do sellers set their own rate for BTC/FIAT or would there be a set market price?
 

Most the people investing in the ICOs are already BTC users. In other words they aren't new to the crypto space. The new users are only beginning to learn about BTC and other established alts. Once the ICO thing blows over (if it ever does) then the scenario will revert to what it was like before the ICOs. I don't there'd be any change on the BTC front.

A group buy is basically an organised purchase where a group of people get together to buy the coins. It often works out that the coins are cheaper individually or that they save on delivery costs as the coins are shipped to one individual who then distributes them to the members who participated in the group buy.
Either way, I don't think that's applicable here anymore. OP decided to sell some of the coins individually.

Where can you see the current price?

I think that's highly unrealistic. As great as Bitcoin is, it still has its flaws. New technologies will come and go that are built on the Bitcoin framework that will eventually succeed Bitcoin. Unless the price magically jumps to $1m/BTC in the next few years this is never going to happen. 

Although marketcap is an indication of the total value of a crypto you still have to look at other factors. Try averaging the daily trade volume. The higher it is the more likely it is that people are invested in that coin for the long run. Look at coinmarketcap.com. Besides for the day traders (pumping and dumping coins) the top coins always have the biggest trade volume. It's an obvious indicator but shouldn't be overlooked.

Haha. It's not my fault that I have self inflicted insomnia. I'm literally running on no sleep whatsoever.
0.21BTC

Well that's annoying...
New bid of F-I-F-T-E-E-N--M-I-L-L-I-O-N--S-E-V-E-N--H-U-N-D-R-E-D--T-H-O-U-S-A-N-D--A-N-D-T-H-I-R-T-Y--S-I-X--S-A-T-O-S-H-I
(0.157036BTC)

To be honest I could do this for you but it'd be easier for you to find resellers in the US. I know that there were a few group-buys for some Denarium coins that came from the EU so there are definitely a handful of users here who have funded coins. The question is whether they're willing to sell or not. Otherwise you could drop
Me a PM and we can sort something out. Escrow accepted too

F-I-F-T-E-E-N--M-I-L-L-I-O-N--S-A-T-O-S-H-I
Or 0.15BTC

Just a heads up for your future auctions. Ever since the collectibles board opened up less users frequent this sub in search of physical cryptos. Most auctions here are for accounts and digital goods. Physical auctions are mostly found under the collectibles sub so posting there would probably get you more views and potentially more interested parties/bidders.