4000 hours is reasonable ... I have one great tip, the best I ever had given to me ... do something every night/day ... something ... be it take off one bolt or part or install something ... every day/night ... without fail ... this was advice given to me by my wife and it got the job done ... it is real easy to say maybe not tonight ... don't do it ... for every finished project on the road I can find 5 that are sitting in the shop gathering dust ... lots of dust.
