Just depends on your resources. I am assuming that while you may be prosperous enough to afford to drop somewhere between two benjies and a grand on a session, you are not filthy rich. If 2 benjies seems like a lot to you - you need to NOT be doing this - it really won't end well.
If you are filthy rich (>Net 50 Mill in securities in your brokerage accounts) - consider someone like Dakota Skye. I don't know if she is available, but my guess would be that she would be if you sent the G5 for her and made it worth her while. BTW why the heck are you even on this board rather than having your personal assistant find one for you. She does sound like what you are looking for.... Delegate Dude!
Assuming price is of some minor but not major concern, you may want to use TER VIP to shortlist based on performance/attitude and even read some reviews (which obviously should be taken with a grain of salt) and then see what physical types are on that list rather than looking for the physical type and then picking based on performance. The type you are describing will probably be an agency girl and, accordingly, you may want to subcontract your efforts to an agency to find one for you. There are several well reviewed agencies that are active on TER. Unless, of course, you are trolling BP, in which case ... well - good luck with that.
If you go with a well and often reviewed TER provider, you will probably have a good time - but it might not be with a young, short blonde spinner with a great ass. Ass and spinner tend to be mutually exclusive for what is to me an obvious reason. And, "if any thing goes" includes Greek - you are probably over specified for this town. Remember, while Atlanta is a great town for providers - it's not LA or NYC; there are limits.
As it happens, I can think of a provider in Atlanta (actually more than one..) that meets all of your criteria EXCEPT she's a brunette....
If you are still getting what you think of as substandard performance after that - you may want to think about taking up a different hobby or even consider what you are really looking for. Sometimes when things aren't working - its a good idea to take a step back and evaluate your assumptions.