Try
www.fragarmor.com , or at least i think that's the web adress. It's the front range armor group , i think that's their name anyway, but the point it that they're a group specializing in 1/16 Tamiya and Bandai armor kits. They have a decent article on converting a 1/16 Tamiya King Tiger to have the engine noise, gun fire, recoil etc. that the full option Tamiya 1/16 Tiger 1 does. Hope this helps.