ORIGINAL: mumfurd

very newbie here so please excuse my dumbness. got a shockwave (love it), but findin parts is pretty hard. do i have to use a redcat spur gear, or is something else compatible? i'm not very educated about this stuff yet (had it 2 weeks and it's kinda learn as i go). are any other parts interchangable without too much fab work? nicer wheels would be cool, but i have no idea what fits and what doesn't. we don't have any shops within about 100 miles so face to face help isn't really an option. thanx for any help.