I'm guessing 'thin floorboard' = rusty floorboards?  No obvious modifications or damage.

"All original except farmer modified bumpers. Axles, tranny, Transfer case, and entire engine compartment is original and all there. Body is very strait except floor boards are pretty thin. Give me a offer I need to sell."

http://seattle.craigslist.org/sno/car/744447629.html 

Jeeps with these beautiful type of paint jobs, much more common a couple decades ago, have become rare.  However, the paint job isn't the only well done item.  The engine compartment is nicely updated and organized.  The fender wells were carefully modified to accomodate the headers.  There's just lots to like about this jeep.  

"Summer is here and the time is perfect to spoil yourself with this vintage 1948 Willys Jeep.  Brand new rebuilt V6 Jeep engine with 3 speed transmission with overdrive.  Manual hubs  in front and back detroit lockers infront and airlockers inback.  Custom paint rootbeeb brown and tan, a real eye catcher.  CB radio and stereo built in to theroll bar.  tires are fresh and in good shape.  The reserve has been set low, the boat is also for sale, but not in this auction.  Seller reserves the right to end auction early and sell to private party as it is also beingadvertised locally.  I am selling thisjeep for my dad and it is located in Murphys, CA 95247…."

View all the pics on eBay 

UPDATE: **SOLD** Was $12,500

“Small Block 350, power steering, tilt wheel, locking hubs on all 4 wheels, Dana 44 rear end, full cage, runs great normally, but needs new tires and a transmission now. 8000 1b warn winch. Too many toys Mom says something has to go! $3,000 OBO. I will deliver it to you within reason as I have access to a trailor.”

UPDATE: **SOLD** Was $2000

This looks to be a pretty stock jeep in great condition for only $2000.  This is a deal worth checking out.  Note the hood has flexed a bit.

“great condition excellent project/ colleters car.”

UPDATE: **SOLD** Was $800

“jeep runs good needs master cylinder.I put 31×10.50bfg all terrain tires in the front there are not in the picture.”

This jeep was listed back in January.  The builder put in a toyota drive train without dramatically modifying the normal flattie look.  

"1953 Willys CJ-3A Jeep. Beautiful pewter metalic paint, full carpeting, tan high back seats, custom padder roll bar, chrome nerf bars, custom toneau cover, and embroidered back arm rests, new VDO gold and chrome guages, unique frame off project with a full Toyota drive train, rebuilt 20R engine, weber carb …. Can be shipped from Montana through Western Auto Motive Transport to the US or picked up in Calgary Alberta Canada. Phone (403)698-3983"

http://calgary.en.craigslist.ca/car/734903386.html 

This CJ-3a has a got a few updates, so it may not be a bad price for $2000.  The top looks in good condition as well.

"THIS IS A STOCK 1952 WILLYS FLAT FENDER JEEP. IT HAS A F-HEAD 4 CYLINDER. NEEDS A FUEL CELL AND LINE. RUNS AND DRIVES. NEW SOFT TOP. NEW BUCKET SEATS. CALL DAN FOR MORE INFO 253-255-6171"

http://seattle.craigslist.org/tac/car/730446700.html

UPDATE: **SOLD** Was $2000

“Take this jeep to the mountains for the summer! It has many upgrades: 12 volt battery, electric ignition, power steering, Buick V6 engine, upgraded brakes. It isnt currently running but wouldnt take much to get it going. Great project for someone who loves the old Willys Jeeps. Email for more info.”