Yes, I have a contact # but I'd prefer to call you after I'm done at my "real job." Send me your #'s via email and I can call when I'm free. I'm pretty sure he's got all the stuff down there, bushings, shafts, etc...
By the way, material incompatibility can sometimes be overlooked by increasing tolerance. Unsuitable materials WILL require larger tolerances due to increased expansion. Too much clearance, and well, it's an exhaust pipe... you know what happens! :smile:
Phil