I'd certainly donate money to a individual in the community to help subsidize their efforts, if they were well known and I was satisified it would be preserved and openly released. I've seen that happen in other communities (AtariAge), where a individual collected donations in order to fund a purchase a prototype to preserve it and release it.
But something about donating after the fact to get the individual to release it rubs me the wrong way. I'd rather be approached when they're trying to raise the funds to make a purchase. The way this is done, I feel more like I'd just be subsidizing their prototype collecting hobby...
In the manner this went down, I feel more like I'd just be paying someone to release something that isn't even theirs to be profiting from in the first place. They already have the physical prototype purchased and in their possession, so it's not like I'm paying to help preserve this small piece of the industry's history.
That they don't even tell what it is, makes it even more shady.
I'll pay to save something, but not after the fact.