Yes, quite doable. At heart, I try to boil things down to the very simplest form a system can be at and still be fully functional. I put myself through college building custom choppers. Ended up a licensed aircraft mechanic (helped build the formula racer "El Bandito"), worked as an engineering liaison at an optical firm building prototype production equipment. A bunch of other stuff as well, Bonneville to drag cars. For me it isn't just a machine but an extension of myself and if I'm going to remember how to work on it tomorrow, it had better be simple!
