1967 Dodge Dart Post

Tell what your mechanical ability is, what's your budget and what you have at your disposal to accomplish your goals. We could guide you along better with a little more info.
Can't be said better. Sounds like a suspension rebuild along with a brake up grade are things that should be first on the list.
When I found my 63,after a good tune up of the bone stock 170 Slant six,next was brakes and suspension rebuild.I went with the 73 up A body large bolt pattern front discs and a 1974 A body big bolt rear axle with the 10''x2 1/2'' brakes.

I may have missed it but is this a budget build ? It would help us all if we knew if it is or not.
When talking about QA1 and other items that is not what I would call budget, we can lead you into the right direction and better help you.
By the way I'm a big fan of the Slant Six but that is your call.
Please tell us more,long term or short term plans. This sounds like fun.