I agree, that is some nice work. I do have one question, you mentioned the use of "V" pulleys... are they one piece pulleys, or are they comprised of two pulley "halves", which are riveted, bolted, or welded together over a bearing?

I have seen two-piece pulleys separate, (pried apart), when used under a heavy load in applications similar to yours.

Not trying to find fault, just hate for someone's toes to get flattened.

Excellent fabrication.

"Forget pounds and ounces, I'm figuring displacement!"

If we accept that: MBG(+)FGSF(=)HBG(F1)
And we surmise that: BG(>)HBG(F1) while GSF(<)HBG(F1)
Would it hold true that: HBG(F1)(+)AM500(x)q.d.(=)1.5lbGRWT?
PB answer: It depends.