And probably too expensive to even consider taking off of a paved road 
I saw an M715 in the local "shopper." V8 conversion, and needs a cab top. $4500 seems awful high to me for a wood truck. 
Depends on the quality of the conversion. If they just shoe-horned a salvage yard V8 in then not even close. If they did it "right" then they are in the ballpark if the rest of the rig is in decent shape and has a good tires, clean title/street legal. a re-pop canvas top can be had for about $300 form these guys. It's where I bought mine and it is a good quailty piece.
http://www.surplusjeep.com/I'm not sure I'd turn mine loose for $4500. I didn't for the $4000 offer I got last spring. $5000 would get my attention for certain, as a stating place anyway. I ran into a Viet Nam vet I know that fell in lust with it, he'd driven one in Nam and also in Germany and wanted it pretty bad offerd me $7500 cash on the spot, started countng out bills. My conscience reared it's uggly little head and made me explain what the actual market value of the rig was and that I wasn't interted in selling at that price -yet-. I've only uded it a little so far this year, moving big stacks of wood from th cuttin operation to my drying stacks and we used it pull down a large 26" diam oak that had died too close to my house. I cut the notch and motioned for him just to take a strain on the chain as I started on the back cut. The driver of my M715 thought I ment for him to go for it. I wasn't even in the full depth of the saw blade when he pulled it down right where I wanted it.
He was walking a little slow, kind of "stiff legged"
when he got out of the truck.
