2 questions on Brake Booster for 72 Chevy C10..

[BrianStep72]

Guys and gals,

I have a '72 chevy C10 without power brakes, I'd like to convert it over to power setup.

SO, my question is. What years brake booster will work on my truck? I found a 68 today, but it is a little wider booster than i have seen on 72 stock.

I also found a 77 chevy that looks very similar setup. Is it truly 69-72 the only ones that work?

SO, after I locate the truck that is needed, and take off the booster, What else is needed to convert the stock over? Do I need all the conectors all the way back to the pedal?

Does anybody have a quick minute to write up what I need to do?
or does somebody have a link?

Brian