Well I managed to swing a new radiator and have it installed. I spent the weekend changing diff fluid, transfer case fluid and oil. But when it came to the transmission, of course there was a problem!
I have that BA 10/15 5 spd, and it has 5/16" square brass drain and fill plugs. Since I cannot find such a size, I had to make one using a 3/8" drive extension and grinding it down until it fit. Of course when it fit the plugs are so tight and so soft that it was destroying them! 
So now I think it may be within my budget to have to take it somewhere. So if anyone knows of a reputable transmission shop around the henderson area I would appreciate it. 
