I've got a 17' Sierra. Clocking about 20-25k a year, just crossed 100k.
Also, I've lived in Michigan since 2016 and I have enjoyed having a truck but am always looking to get into another wagon.
M56H with almost all the parts and a lightened flywheel, I paid $750 shipped for the trans and parts (still wrapped on a pallet) and $125 for the flywheel. Make an offer, I'll take a lose on this stuff. I don't see myself using it.