Great idea if it does get off the ground, but Grimsby's success was down to a small number of sizeable donations. One Grimsby fan alone put £20,000 into the kitty, and there was another donation of £5,000 according to the non-league paper. Have any Boston supporters (Euro Millions winners aside) got the sort of money that can make a difference? Don't forget that wages are still comparatively low in the town. I hope the idea works, but at the same time we do need to be realistic around what fans can afford.
EDIT: Given that we're about to move out of York Street, maybe the club could put together a collage of pictures of the old stadium (the different stands, some of the memorable matches, etc.), and look to sell some form of framed print to its supporters. I'm sure there'd be plenty of interest and I reckon people would be more likely to hand their money over if they were getting something tangible in return. It'd also be nice to have some such pictures hanging up in the social club at the new stadium.