How much should I sell a cake of this size and detail work, not necessarily this Optimus Prime, but similar? The cake slab is vanilla/vanilla (20"x13") and the standing structure is rice cereal covered with fondant.
AHow much do you estimate the ingredients will cost, and how long do you think it will take you to make? How much is your per-order overhead cost?
Keep in mind that you will need written permission from Hasbro in order to reproduce their copyrighted character.