The only completed auctions within the last 60 days on eBay hasn't helped me come up w/ a fair asking price for my Superlink Grand Convoy and Built to Rule Energon Optimus Prime. There are a few current listings of $200+ for Grand Convoy and nothing for BTR Energon Prime. Are these really that hard to find? My SL Grand Convoy comes complete in original Japanese box w/ instructions and BTR Prime comes in his original box w/ all parts & instructions. Any help is much appreciated.