I noticed the other day on my way thru Wichita the local Peterbilt dealer had a couple RV toters on their lot, so I found out alil more info on them. They get the trucks converted to 4 doors and then build the beds themselves. Their based on the 330, 385, and 387 models. And you can get b/w 300 and 600 hp with a couple different tranny choices. I sure like the power choices better in these then the new Int'l. and Chebby oversized pickups.
Their a bit pricey, the 2 used 99s on the lot they wanted 95-100,000 for them. I don't know what the wanted for the 3 new ones they had.
Doonan Peterbilt . Look under the Custom and Farm truck section also.