Wow, thanks for educating me on the batteries! It's a load of information & I think it has all sunken in!
I think I may have lucked out tho... I took all the cables off each terminal today, steel wooled everything including the nuts, added about a gallon of distilled water to all 3 batteries, trickle charged them for about 8 hours & YUP! Buster fired right up!! Now I can at least drive it to Discount Auto or similiar to have them test the batteries. It feels good to again accomplish something else!
Thanks again everyone!! Oh yea, anyone have any idea what batteries cost each? I am thinking 8D's or what is in my bus, group 31's...