i see lots of new parts removed from new rc cars, i buy many of them how do they manage to make mony with this? I'm interested in trying it do i buy a new rc truck and just sell each parts as a pair and ill double my money? say i bought a revo 3.3 for say 500 even, would i profit 2-3 hundred on this or would it take forevet, help please thanks, not so much interested for the money just to spare time and make a little money