Got the booster in today
 

After 5 weeks of waiting, recovering from back surgery, I got the brake booster setup installed that I got from Teeitup (thanks Randy).
What a difference!
4 wheel drum and 31" tires, still have a goose egg on my forehead from the first stop.
Very easy to do best cheap upgrade I've done. but one thing I didn't think about is I needed to order a different pushrod boot for the firewall, it is different from the manual brakes; I did the farmer fix with a piece of rubber and am ordering the right part, but the whole thing works great.