Jason: I know that Nero Wolf was fictional, but the concept of orchid growers maintaining GH's on rooftops in Manhattan isn't. Surely there are orchid clubs in the greater NYC area?

I would bet that if you joined such a club, you would find a number of people in your area, possibly on LI, who share your passion and would be willing to give you some winter space.

I can't help you, because for one, I'm too far and for another, don't maintain a tropical GH, but one of my neighbors has space in my temperate climate GH in which she grows veggies and in exchange, I get some of the veggies and she helps me maintain the GH. Offer to help someone maintain theirs, especially if they want to vacation, and you just might find space to share sooner then you will get your first hard frost.

Good luck!