I have all ready answered this on hobby havoc

hi try this site
http://www.rctankwars.com/

just email Phil at address below telling him what you want and he will set you up .

[email protected]

I believe that he is based in America on the west coast
failing that have a look at this topic
http://www.rcuniverse.com/forum/m_58...tm.htm#6284710