I'm sure he did!!
He said his intention was to keep the truck and was fixing it up to keep it for a while. You can tell because he went above and beyond just cleaning it up to resell.
The only thing he didn't touch was the paint and it is still in very good shape for 15 year old truck. When i finish the swap im going to be looking for an odometer with around 80k miles on it to match the mileage on the motor. Everything else on the truck has 12k miles on it.
I found this for just the front seats on ebay. I would say $1,000 for all the pieces then the install.
http://www.ebay.com/itm/96-97-98-99-...6cd3e2&vxp=mtr