I'll try to help, but please double check my math and the logic too, just to be sure.
So are my numbers above correct? I know there are certain fees that get deducted from the money you receive or send.
So how much BTC do I need to buy and be safe I have enough after fee deductions?
You should calculate some extra for the price fluctuations. They can be even 7-8% .. in both directions.
The transfer usually costs under 10 cents when you send from your own wallet (if you don't have too many inputs), but there's also the fee you pay to transfer from exchange to your wallet, which is usually bigger and it depends on each and every exchange.
Then you have to keep in mind that there are "live" exchanges where you buy at around the "internet price" (and there too buy and sell prices are different, while the internet price is a median), but some others will also add their own commission over that.
What I want to say is that you should compute in Bitcoin.
You need some 0.0069
BTC + ~4% (half of 7-8%) = 0.0072
BTC; the sending fee is negligible; the exchange withdrawal fee let's say 0.0005
BTC (I used Bitstamp's, but I hope you can find a cheaper option)
Total = 0.0077
BTCSince you have 0.00527672
BTC, you may still need to buy 0.00242328
BTC.
By doing this you may buy a bit more than you need, but you should not get into situation you didn't buy enough. However, you've got the idea and you may play with the extra % and the exchange withdrawal fees, just try to compute your needs in Bitcoin..
And where is the best place to buy BTC? I live in Florida. Coin Mama doesn't service Florida last time I checked?
Here i cannot help. For such a small amount it may not worth it to use live exchanges (like Coinbase, Bitstamp, ...) because of the bigger withdrawal fees and I've used only such exchanges.