For any and all of you collectors out in the world, there’s a vintage, uncut 1984-85 Sims prototype board on ebay right now. You won’t want to ride it, but it’s one hell of a wall mount:

http://www.ebay.com/itm/251172491718?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649