It's a fairly solid cab, front fenders appear to be Chinese repops (weird gaps) and the doors have some bondo, but not rusted- looks like a quickie dent fix and Maaco paint job.
I only paid $750 for it, I've put about $1000 into it (t-case, front end work, replaced rear end when bearings took a shit). I need to replace the slave cylinder, so I might as well upgrade the trans.
Front end is saggy- common for a plow truck. It drives straight as an arrow, and the tire wear is pretty even for a Ford.
I've just recently decided to wheel this, I figure it should be good for what I want to do based on the response here.