I might just explain here... this is how the rules are about building replicas such as this.
Basically, you can't build an exact replica. This is to prevent people passing off cars as being the genuine article when they're not. The term used is 'in the likeness of' and applies to cars we're allowed to build using components, technology and methods used up to 1940... with an allowance to use immediate post-war stuff if it's the same.
If someone can prove an original car has definitely been destroyed, with no hope of resurrection, then they can apply to build an exact replica, but this requires going through paperwork and tests unimaginable to mortal man.
As cars built 'in the likeness of' cars of the era are not allowed to use fabricated chassis, they must be built using a period production chassis (however modified), my plan is to make the car as close as I can to the original, but use old chassis rails to make up the frame rather than the square steel tube fabrication Barry Ranford welded up.
So it wouldn't really matter if I got a little off-course with the brakes, even though I don't want to. If the F100 stuff fits, and I can't find the sedan stuff (which must get scrapped by the ton by hot-rodders fitting disc brakes!), then that might be the way to go. Or maybe I could graft Mopar brakes on there... from something like a '39 Chrysler. Might that work?
Anyway, this is a fun project which has seen me invest a grand total of $180 so far. Time is unimportant, it all began in 1977 after all, and it keeps my brain a little more active revisiting it every so often. But with that engine sitting in my trailer it's sort of taking on a more positive feel.
