Spence, I believe Barry has a 700R behind the 4bt with a 205 transfer. Presently it has a 44 and 9" but 60's are on their way. Hopefully he will have it at the Fawl Crawl and I can take some pictures.
As for putting a diesel in a Sammy, they stopped making the kits a few years ago. A friend tried to call around and piece one together without much luck. I think it could be done without too much trouble if you have a complete donor considering the Sammy has a divorced transfer...if it will hold up.