I'm making a custom Omega Supreme w/ some inspiration from UUser, Scotstream, and others. The only part I'm struggling with is figuring out how to mount the Unicron Calve/Planet/Missile Launcher pieces onto an Energon Omega Supreme. Attach at the back or the shoulders? Use minicon pegs and drill holes or is the piece too heavy for that. Same for magnets. Ball joints? Lego bits? I'm at a loss here.