It was something a friend and myself were discussing a couple of years or so ago, eventually myself deciding to home build a 29er - as I already have a 650b+ a single speed 26er and a 1993 orange clockwork!

The hardest part i found (as it took me several attempts) was the routing of the right hand chainstay between the wheel and chainset

iironically the easiet part was applying the resin and flax!

unfortunatly due to my job, ive not had a real opportunity to ride it!

If there is a next time, i'd route the internal cable of the rear brake a little better around the bottom bracket.