Being a US resident, why you don't buy Bitcoin directly from CoinBase?
I don't think you hit the daily limit.
Being a US citizen is now more like a burden than a blessing when it comes to digital currency because of regulations and all this tracking by agencies, even gambling sites finds it difficult to accept US players, the fear of US is the beginning of wisdom. That being said, you have presented a good case but I will suggest you try localbitcoin site as you can even get to transact physically. Also, everyone is a capitalist as you're trying to make profit, I'm also trying to make more if I will be converting the PayPal you're sending. But, I have seen case of reversal of PayPal even if its friends or family.