Thanks for all the replies!

Does everybody use the standard Tamiya electronics? Has anyone tried to install other speedcontrollers, made their own turret mechanics or made non Tamiya sound/light effects?

I want to make my tiger driveable at first, and add more functions as time goes by. Before I install a lot of expensive electronics and mechanics, I want it to look right: custom paint, accessories, weathering, tracks and all the exterior finshings,.