Just got off the phone with Phil from Supermax. Cool dude. Gave out a flurry of information. This guy's mind operates at a million miles an hour. Aaaaaaanyway...
A stock harley pulley costs $460 to overlay. Building a new pulley from scratch is $600, so it would probably be worth it to just start from scratch. Keep in mind that these things supposedly last virtually forever (and I don't plan to ever sell this bike). He said it would probably be an extra $100 for machining because he's not set up to deal with my pulley but he'd know more once he saw it. So I have to pull one of the side flanges and take some pictures before he gives me a real estimate.
If it was the narrower 8mm setup that came on some Japanese bikes he wouldn't deal with it at all. He says he doesn't even know why people produce pulleys in aluminum anymore, the teeth just don't hold up. And here I was worried about BELT life when I bought this kit. Turns out the pulley wears out faster.
Also I told him about my first belt delaminating and he thinks it was a rubber belt, not a poly (?) belt, since it had a smooth back, not a serrated back like the current one I'm running from Harley. He said the rubber belts fall apart, too. He was amazed that Newspeedmaster/QPD sells the kit so cheap (!). I told him that most Triumph riders are pretty "frugal." He said he still has an old Triumph, I think he said a '52, and he modified the output shaft to take Harley components so he could run a belt drive that way. Then he said the Triumph was too slow for him so he has a stroked out shovelhead.
Oh, we didn't even talk about the front pulley yet.