Oh I see, I´ll look for a tower on ebay, will a King Headz or an aftermarket work? or they´re the same size as the original MBX5 tower? thanks Tony!
Edit: will any of these work?
http://cgi.ebay.com/Mugen-Front-Shoc...3286.m20.l1116
http://cgi.ebay.com/Racers-Edge-MBX-...3286.m20.l1116
The racers edge one seems taller