New 1967 Barracuda Owner!

Welcome to FABO. I almost feel cousin. Our first 67 fish was 67 nocthback. Spinnaker white with metallic red guts. It was a slant 6 build but not low end. It got a high end horn ring common to B and C bodies (it has a dust collecting black groove in it, like the A-bodies center console), the reverb option on AM radio, and variable 3 speed wipers.
We have owned serveral 67 fishes since that time. First always has a special place in our hearts like first loves. Daughter totalled it. :(
You mentioned suspension. I know handling is part of that. I also know I'm 64 years old. Back in my day, I could buy a 1975 4 door Valiant with blown slant 6 for only 2 hundred and move power steering, disc brakes, stabilizer bar, large bolt pattern, on and on, onto my 67 fish that didn't have any of that when I bought it. Today, that 75 Valiant isn't so easy to find or aquire.
So sure you will deal with todays aftermarket options and prices.
The best news... You found the right forum. Members here will help you maintain it as it always was or turn it into something more. Happy moparing