Yeah, no personal experiences, though I've had to deal with this at my job. It's well known here that if you lend anything to a film crew they are very likely to destroy it, and at the very least will not treat it with any respect. Not a good idea to lend anything that you expect to get back in functional condition. It may be different in Manhattan with an aspiring amateur filmmaker. While I strongly commend your desire to support the arts, I would exercise extreme caution. Being present during filming is the only thing I'd consider.