Custom work from Mike

Does anyone know if Mike can do one off gearsets? I know he does mounts and chassis pieces, but would he be able to do internal differential bevel gears like what's found in the Duratrax Vendetta ST or most other gear diffs? I have his steel idler and steel diff for my Rustler, and love them, but did he make those or no?

Thought I'd ask on here first since I'm sure Mike is a busy busy guy.

Thanks guys!