I know hammond players who gig A-100s. They are desirable. If you don't want it, figure out who the hammond guys are in your area and tell them what you have. They may want it, or know who does. The hammond guys I know are great musicians and the first people I'd trust to find the best and most deserving home for it.
Any A/B/C hammond through an old leslie is a magic sound to get to hear in person and be near. Saving these is important because they won't be made again.
I'll take your advice. Yes, I think it's quite important to preserve these things.