A couple years ago I got a chance to drive (for a short distance) an older Ford Ranger with a Kubota 2203 DI and 5 speed transmission. It also had a turbo added, but I don't remember what he said it was, maybe from a gasser of about 1800 cc size. Seems to me like what he said. Anyway, I didn't push the Ranger since It wasn't mine, but the power and driveability was impressive. He told me that he drove it like he stole it.
I found about the Kubota 2203 on the dieselbombers.com website. The handle of the person that owns the Ranger is FTE, and the handle of the person that I first contacted on that website was flyinmonkeys32. flyinmonkeys32 was in the process of making the Kubota 2203 fit into his Ranger when I visited with both of them at flyinmonkeys32 shop. If you go to that website there are a lot of different diesel swaps, including the Kubota 2203.
Don