Maybe check Kelly Blue Book
I did a quick check, my zip code, both good condition, loaded, private sale, blue color.
Truck 1-$14,868
Truck 2-$11,959
Somewhere I read the 2012 5L(302) had oiling issues(?)...maybe check that.
My '93 I have about $2,800 in it but 207,000 miles I'm not comfortable...