Thanks guys for the pointers. I wish I knew how big the gas tank is, because the 5.5 gal. of fresh gas that was put in it should have freshened up what was in there.The gas that was in there should be less than 3mo.'s old and with the new gas it should be good enough.
The truck had new tires put on it in July so it is good there. I don't think they would have done that if they intended on disposing of it, so I think it was used for a while after that. The truck was in a dry climate, and only used in the summer on top of that so there is no rust.
I watched the You tube videos and I will try that process. I'm not sure the truck will run on 3 cyl for hours but will see. That is if I can determine which cylinder is leaking.
I always buy the concentrate anti-freeze, because I'm cheap. Distilled water is pennies per gal and I don't mind mixing. I just pour it in and let the engine do the mixing.

Thanks again,
Greg