Dead Pump
If in fact you really need a pump, there is a shop in Tifton where you can get the pump done for 6 to 7 hundred. If you can do the work of pull and replace, that is about all it will cost. You won't get any serious offers more than about a thousand for the truck like it is. Doesn't matter what you have in it. If it won't run, it won't sell for much. So you just about have to fix the truck if you plan to sell it for anything. Over time, you could part the truck for more than it will bring dead.
As you may surmise from my forum handle, I am partial to the first gen so as to opinions, I would certainly fix the truck and keep it forever.
Being a first genner, I have to get into the act with the others and say, if you decide to sell, I have cash and am close. I have a tow bar that is custom built for the first gen. I have a trailer with a wench. I have a spare pump. I have a 93 with a half million miles that is running fine. I can be there in about a half a day, any day.
Finally, the pumps do die, but sometimes, they are just playing possum. You have to know how to revive them without a rebuild. Do you know any details as to the condition of the pump.
PM if I can be of any further assistance.
James
1stgen4evr