I am wondering what a fair price for a vintage G1 Optimus prime w/grey roller is. Prime is in C-9 NM condition w/nice smoke stacks. All 4 grey missiles and grey roller. He comes w/all paper work and spec decoder + foam tray insert. Also the box has a flap crease and stickers are neatly applied. Box appears to in nice shape w/just normal wear and tear. Probably a C-8 or C-8+. Thanks and LMK. The guy wants $175 shipped for it. I offered him $150 + shipping.