In less than 3 days, you shall have your answer. Less 10-20% for the sticker being used. G1 PEPSI OPTIMUS PRIME MIB STICKERS ON SHEET! DEAD MINT - eBay (item 300382794802 end time Jan-08-10 13:20:53 PST)
I'd rather have the Pepsi Prime with the 2 liter bottle carrier trailer instead. but i am loony that way. hope it doesn't become too expensive for your friend, though.