I like a good original owner find! And it looks fairly well optioned. I just got one running that had been sitting. As soon as I fix one thing something else starts leaking.
I'm very happy with mine although yours is more what I was looking for.
I never could get the fuel tank in mine clean and I was afraid it was rusted a little thin so I replaced it. They are pretty cheap...
Keep us updated. This looks like a great truck!