You have a good understanding of everything, from what I know so far.
NOTE: These are not official answers as I am not related to the project. But I thought you had good questions and I wanted to provide the answers for you.
I hope "my understanding" is correct on all the above points.
Yes, it is.
I presume this would be a very optimal setup, is that correct?
"very" is a relative term. It might be more optimal to have 20 L3's and 18000 token. Who knows?
But two L3's with 1760 tokens will work great.
THE PROBLEM is finding and purchasing (2) Antminer L3+ miners.
I pre ordered a couple of them a few months ago, and recently sold them on ebay. There are more available on ebay, but for a serious premium.
If I purchase 1,760 WTT Tokens in the ICO, can I "rent" them out UNTIL I can secure (2) Antminer L3+ miners?
Yes.
Speaking of speculative value, it appears that WTT Tokens WILL appear on crypto exchanges - IS THAT CORRECT?
This is what we have been told, but detail have been scarce.
If so, has it been announced which crypto exchanges WTT Tokens will appear on?
Not that I know of.
If someone has miners, but no WTT Tokens, I see that they could either rent WTT Tokens or wait to purchase their own WTT Tokens when they appear on an exchange - IS THAT CORRECT?
This is my understanding.
Is there any commitments required when renting in regards to length of time/duration? If I'm renting WTT Tokens, I may at some point acquire miners, and not want to rent my WTT Tokens out anymore - am I locked into a time commitment? For those that start out with miners, and renting WTT Tokens, what if they want to later purchase WTT Tokens off an exchange, are they in a time commitment with their initial rental agreement of WTT Tokens?
I have not seen this be clarified.
Is it true you need to be a WTT TOKEN HOLDER to even purchase miners directly from Giga Watt?
Yes. (This did not used to be the case, but it is now.)
Ideally, it would appear my best bet would be to wait until I can secure a couple of Antminer L3+ miners, and at that time hope I can pick up some WTT Tokens off an exchange, or just pay rent to a WTT Token Holder to host my miners - IS THAT CORRECT?
That is a matter of opinion and psychic powers. It depends how much you are able to buy the token for on the exchanges and their availability. And it assumes that renting out the tokens is a bad thing to do in the interim.
WHY would I purchase 1,760 WTT Tokens in advance if I DON'T have any miners yet, and I'm NOT interested in renting out WTT Tokens (because I don't like the ROI time)?
Maybe you think the ICO price is a good (low) price. Or maybe you're concerned about available supply on the open market post ico.
Is there any speculation of whether WTT Tokens will go up/down once they get listed on a crypto exchange?
We're all speculating, to some extent. But I have not seen any super thorough analysis form anyone.
If the speculation is that they would hold value or even go UP in value, then purchasing 1,760 WTT Tokens during the ICO would make sense.
If the speculation is that they will go DOWN in value once they list on an exchange, it would make most sense to WAIT and just acquire WTT Tokens at a lower price from an exchange when I can acquire a couple Antminer L3+ miners.
Answering your own questions now
Will Giga Watt allow me to host my miners rent free with them if I purchase my WTT Tokens at a later date from an exchange versus buying them now during the ICO?
Yes, that is my understanding. The token's value is intrinsic, regardless of where/how you get the token.
If/when you decide to buy your tokens, you can do so here:
https://cryptonomos.com/?r=1lv0eNDlOmhWNTu18ev35yyLJ