I have a MIB Japanese Tidal Wave/Shockwave. It has been opened & transformed once & then neatly put back in the box. The box is C-9+ like brand new. How much should I charge for it? I usually check the completed auctions on ebay but there's nothing on there to go by. Also, I have a loose complete Energon Ultra Magnus. Again, there aren't any completed loose ones on ebay to go by. Only 1 MIB that ended at $139. So what's a fair price for a loose one? Thanks!