Update:
I purchased a 30qt drain pan (plastic) and marked it in 1gal increments. What showed after draining was exactly 3gals but I did spill some during the drain that ran across the frame and onto me. So I'm guessing probably closer to 3.5gal.
Also hooked the A/C condenser fan to the battery directly and it does not work. Have one on order now. Here's a pic of the fan...
https://www.dropbox.com/s/oilh4kcssl2dkcn/IMG_0411%5B1%5D.JPG?dl=0
Have now replaced both radiator hoses and the bypass hose along with a new T-stat 195F