I too was watching that auction... just too far to tow home from TN to the NW though.
It is a rare MH, 20ft'r with the rear wraps. I don't think I've seen that. Please post pics when you get it, I'd love to see how that mid section and rear is laid out. The bathroom appeared to be all there, just dirty.
If that engine is put in right, then you SHOULD have an easy build up to a runner.
How are you towing it home, with your other MH?
Let us know how it goes and keep us up to date on the build!