Early47, sorry we have gotten off topic (Sometimes we get carried away big_eek) Like Tim says and by looking at your pictures, it's a 1/2 ton. You only have one stake pocket in front of the fender. If you had two, it would be a 3/4 ton or in some case, a long bed 1/2 ton.

We have a great section making a stovebolt bed where we can get into further conversations and the moderator won't kick us out dance.

My guess is that your bed is in good condition with little to no rust , straight fenders and the optional spare tire carrier (hard to find), i would say $250 -$500.