It sounds like plenty have been done to this jeep.

“This was my winter project. I was going to keep it but, with Jeep offering such good deals on new jeeps, prehaps a new jeep? A TON of work was done by the previous owner, I got it and finished it. All work was professionally done.
It has a new steel body on it, (the fuel filler is in the drivers rear instead of under the drivers seat), just repainted, (it was scratched, no body filler plates)
6 point full roll cage.New fuel tank with “skid pan”.  Electric fuel pump.V-6 motor with low mileage, (no gunk under valve covers or timing chain cover) good oil PSI
New timing chain and gears.  “Hooker” wheel well headers with “Turbo” welded mufflers, (as well as a spare set of small “Cherry bomb” mufflers).  “Moroso” chrome valve covers. Almn. Radiator.  New T-90 3 speed trans, Dana 18 transfer case, clutch, pressure plate, throw out bearing.  “Advanced Adpter” chain clutch linkage. Dana 44 rear axle, Dana 27 front axle, (all axle seals were replaced, new fluids in everything underneath, bearing repacked). New brake lines, wheel cylinders, dual master cylinder. New tires on stell spoked rims as well as a spare set of “Mickey Thompson” L-60 tires on “Eagle Alloy” rims. New gauges, Radio, C.B.
Custom Racing seats.  Everything on the Jeep works as it should. It’s not show restored, but a solid jeep.  All it needs is a top and a heater to finish it off. I’ve got all the reciepts for the work I’ve done, as well as as much info as I could on the jeep, plus a list of part vendors.”

http://scranton.craigslist.org/cto/1603045990.html

UPDATE: **SOLD** Was $4800

“1965 Willy’s CJ-5.  Engine:  225cu. in V-6 (orig. ‘63 Buick engine), Re-built 2 barrel Rochester carburetor, Re-built oil pump, All gaskets & seals, New Ignition.  Drive Train:  New B&G clutch incl. throw-out bearings, plate & tensioners, New 3-sp transmission, Re-built transfer case, F+R universals, wheels bearings incl 4wd & seals all, Rebuilt front differential.  All seals under jeep.  Brakes:  Original/new shoes & cylinders.  Also:  Trailer hitch, New paint (originally no rust), PTO Ramsey winch (Drive line re-built/ HD universals & carrier bearing), Roll bar.  Other: Sold as is. As always Jeeps need TLC & the possibilities for fun upgrades are endless!! Price is $4800.”

This looks well modified for the trails.

“1956 Willy’s Must Sell, Great little Jeep will go places that i do not care too…Street or off road ready as is. Only selling due to a bad left leg injury no more stick shift for me..Possible trade for ???????? Let me know what u got. Looking for a cr250r as a possible trade 2007 or newer. $4,250 obo. 283 Chevy V8. Power Steering.  4:88 Posi front and rear. Dana front w/disc. brakes. Warn overdrive. 4 speed w/granny low.  Floating rear axles w/locking hubs. Tow bar. Warn winch. Rancho suspension w/ double front shocks. Radio/cd player. Full sw gauges. Two gas tanks w/elect switch over”

http://lasvegas.craigslist.org/cto/1587746624.html