I want to work on customizing another character for the Transformers Dark of the Moon. I don't need Jolt, but I may need his body but with a different head, maybe a gundam head. I want to know these questions. 1) Are Gundam Heads same size as a deluxe Transformers figure size? 2) Are there any Gundam head on ball joints? 3) I'm thinking of a Gundam Head on Jolt's Body and naming him Prowl, What do you think?