I think I had about 8 hours or a bit more of machine shop time in that one, so you'll need to have a lathe and a milling machine, or find a machinist that works "Pro Bono"! If Langdon still sells the modified unit, it's probably more feasible to bite the bullet dollar-wise, and let him do the machine work.
Jerry
X2
I have been running one of his for several years, runs great.
