To tell the truth, I think a guy can do as much or even more with a CSM setup, there is just more time and labor involved than with other mills.
I have a friend that built a CSM years ago and built what they call their cabin. That cabin is ober 3,000 sq feet, but it is fly, snowmachine, or sometimes boat in only.
After he got most of it built he did get a circle saw rig and pulled it and a big planer moulder setup up there with a dozer on the river, but the majority of he house was cut up with a homeade CSM. At some point several years ago, the river flooded his mill and planer setup, and from what I understand it is pretty much junk, he bought a lT40 a couple of years ago, but hasn't taken it up river yet.