I needed a good engine for that very original D4-10 I got a couple weeks ago. "Farmerall", Matt's brother Ray was kind enough to sell me his TR-10D that has the end broke off the crankshaft. I have a good crank and other parts to build one good engine for that tractor.
I also needed a couple engines for the JB's I just got home, so I bought the 12 Wisconsin engine that he took off his HD-12. It's not the right engine as it should have a 12hp Syncro-something Briggs on it, but this is an engine that left the BH factory on a BH tractor so it will go on the JB II.