Thinking about selling my Centurion collection. What should it go for? It's a complete Series 1 collection. Has the boxes for everything but the baddies, and most of the blank sticker sheets and instruction manuals. The boxes of course have some wear and tear, but everything is 100% complete and in awesome working order. The only downside is that Hornet's stickers aren't applied because they won't stick. Any suggestions on how much this should go for? Thanks.