I bet your brakes are fine. Drilling and slotting is mostly just for looks. Unless you are autocrossing, you'll probably never have to worry about outgassing.
Which wiper motor did you use? See my Wiper Motor thread on this forum...
I like you kept the Pontiac power plant.
If I had the choice, I'd get rid of my Demon carb too, and go with the MSD Atomic EFI.
The best thing you did was not keeping track of how much it cost!