Well, considering you're from Massacusetts and yet you still consider Killington, which has to be at very least 2 hours away from your house, your "home mountain", I have a legit suggestion. Try Whaleback in Enfield, NH. They have a pretty solid summer setup for jibbing with a couple round rails and a few box variations.
I know you said astroturf wasn't cutting it for you, but that's really the best option I can think of closer than virginia, as mentioned before.