How about gorgeous Jenicole of Chicago who tours regularly in NYC? Rate of $400 per hour. Killer Latina looks (like a telenovela actress) with "looks better than her photos" comments very common. All-natural, curvy 34B-24-32 physique with tits that guys rave about. She's the real thing. About 20 years old. Very strong reviews overall, especially on TER. No tattoos or piercings. Mileage? Far beyond the basics. BBBJ, LFK/DFK, DATY, and reportedly BBBJTC/NQNS (YMMV...and yes, NQNS means "swallow"), positions galore, and reportedly YMMV regarding Greek. See
http://www.naughtyarousal.com for details. A guy has to pass screening with her first. She offers incall and outcall is ok with her.
I'll throw the question back at you. Your budget is $300/hour for basic service from a girl who meets all the criteria you stated. Would you be willing to pay an extra $100/hour for a decent shot at the GFE/PSE mileage Jenicole's been known to offer in NYC? She might not be your type or $400/hour might not fit your budget. But this girl is considered quite exceptional by many trusted reviewers.
NYC has escort price points that are routinely through the roof compared to other cities. Top-tier escorts in looks/performance/attitude frequently command $500+/hour.