I'm 99.5% sure that one is the serial #1303 that was an aborted project from a guy I know in Novi MI. The Jimmy was beyond repair and the camper is so-so. I track everyone I can find, my 'trick' for a national search of Craigslist is this kind of
site search by google. Seems to work fairly accurately and is less cumbersome than one of the various other craigslist search web sites...
I copy n' paste these to a list I keep for our Yahoo Chalet owners' forum, it's up to 36 of these at the moment, though one or two of them may have been sold. Anybody who wants the list can PM me.
#1303 Casa Grande below, before the camper part was separated from the Jimmy.