From my experience, for a chain saw mill you're really going to want to find an 076 or an 090 and rebuild it, if needed. They run a lower rpm for power and that's where they excel with a mill. In Alaska, I had the 076 on a Sperber and was able to mill boards out of 2-3 foot diameter trees. We did have a larger Husky there but it didn't handle the extended load as well. Just my 2 cents.
