I would be interested, but few points of concern: (IMHO)
Price point: you mention 500+/hr , holy that's way over my budget. I once or twice did saw indie at 500/hr (long ago) but now it's really hard for me to dish out that price.
KG (flat 400 with 1 or 2 except like Gisella) i rarely visited them when they were at 380.
VIPspot is ~400-450 (i never visited)
Then there is customers based....all respect to you and everyone else that can say 500 is their limit on budget, i don't think many of us can say that at this moment.
i don't think the owner is willing to charge less than ideal going price for k-agency in NYC.
MG is operating at an AMP environment, their rate is at 360/hr, not to mention their are competing against other AMP in nearby area
Same goes opening an agency, which you are competing against AMP in Flushing/Queens area where they are operating ~300/hr (280 to 340 range).
This is just my opinion, don't get me wrong, I agree with you, i would like to see K-girl agency opening in flushing or bayside given that in near future i probably won't be able to venture into Manhattan to see my favorites (Ada, Barbie, Vicky-NYAF/SG, Salacia-RS8 and many others).