So is this a '93 or '94?
I would sit on that truck until you can afford to either fix it or install a used engine from someone like @slow95z if the body and interior are in as good of shape as the underside of that truck.
That looks like a nice truck and I think you might be surprised at the pricing on a used motor. As a parts truck, it has a decent value and even more if you are willing to part it out yourself, but as a running and driving vehicle, it's worth far more. These are expensive and sought after cars these days and that one looks pretty solid, except for the obvious fly in the current ointment.
As others have said, they aren't that hard to work on and even a decent set of Harbor Freight grade tools and maybe renting a motor pulling stand could get you well on your way to tackling this yourself. We can help. All it takes is your time and I would say in the $1500 range, all in, tools included to buy, ship, and install a used motor on your own. That would turn a $2000 parts rig into a $8000 asset.