Homebrew classes and such are pretty out of bounds for this
It is already an Effigy Master, as well. The motif is a giant robot army ala Zoids
I even have a Whale King-esque carrier.
All I got in terms of homebrew allowance is an okay to look into options for 7th, 8th, & 9th level Infusions which don't officially exist.....
Edit: Clarification: This is not stuff for a character that is still being built. This is for a character and a game that has already long since started and been well under way.