I set off to build mine completely. I did it all; engine build from bare block, trans build, axle builds (lockers, gears, shafts, brakes), bent up chassis and welded it, set up all suspension and drive shafts.
In the end I've been very proud of my work. Other than I eventually gave up on building my on trans and bought a PTC unit.
I think every time I've stopped at a gas station with it I've had someone approach me asking about it. All kinds of ridiculous questions like how many deer have I ran over with it..... Odd. But usually it ends with the person asking if I could do work for them. My usual answer is no, I've only gave my number to one guy and I never heard from him.
I enjoyed the build almost more than riding, almost. So I'm already planning the next build.