No pics, but this sounds like a good price if you want an upgrade over your existing engine. I’d put this in Biscuit if it weren’t so far away.
https://asheville.craigslist.org/pts/d/asheville-chevy-ii-cyl-engine/6959241104.html
“Chevy II 153 4 cylinder from 1962/63(?). The motor has been built as a high performance engine…has a 4 bbl intake, dual point distributor, header and (I think) the big valve head. Runs great and had it in an old Jeepster but replaced it with a V6. Seem to be hard to find as a lot were scooped up and built for dirt track racing. Ran fine in the Jeepster with good oil pressure and no over heating (has new water pump).”