what you doin' surfing the Georgia CL?
I do some nation wide Craigslist searches to see what I can find, Cabriolet is one of the keywords I use.
As far as the Price,,... $18,000 is certainly in the ball park. If that truck was on my lot I would be asking closer to $22K. It is worth it, and he will get it. I have sold enough of these low mile OBS trucks for $18K and up to know that there are buyers out there.
Here is a perfect example of one that I recently sold, and this Cabriolet is way more truck, and cheaper.
http://www.oilburners.net/forums/showthread.php?56323-It-aint-Cheap-but-it-is-Darn-Nice!&highlight=
This truck was a $50K truck when it was new, that was the original sticker on the one that 2wd F450 Cabriolet that I had. What else are you going to find with that low miles, Diesel 5sp, 4x4, Cabriolet Conversion. Today that truck new is $80K. Of course it is an old truck, but it is still worth the money.
There are a TON of guys out there that love the OBS, and dont like the Superdutys,
For insurance, you would have to get it appraised and insurance based on the appraisal, Not a big deal that is how I have my truck insured.