FWIW, I have the same Wilwood brakes on my car. I have the most common 1" Corvette style master cylinder. I originally had a 7" single diaphragm booster, but decided that more boost wouldn't hurt and changed to a 7" dual diaphragm booster. The brakes are not overly sensitive with that setup. If you have a 1-1/8" master cylinder, the pressure would be about 27% less - too low for my tastes.

You're on the right track with the sway bar. I just saw a picture of a new frame with that type of setup. The bar was mounted on the back side of the cross member, but connects to the front side of the lower A-arm.

I've been driving my '37 Oze around some corners, at speeds that are faster than normal and don't have excessive body lean, even without any sway bars. It's no Corvette though. I'd install sway bars, if I could get them made without a huge expense. I've read hot rod magazines long enough to know that you can get anything made, if your budget is unlimited.

Whoever installed those windshield wipers wasn't real sharp - there's way too much overlap on the blades. Most never get used anyway. I must have them on my car to meet Colorado requirements.