From what you have listed there thats right around a 10 second car set up, what would be wrong with the stock front suspension? it will certainly work fine in that range, many have gone way,way deep into the 9's on the front suspension in a typical "backhalf" vega. just change the front brakes out to a wilwood set up and a set of coil springs,drag shocks would be all youd need. One thing you can do is swap the upper control arms from side to side and this will give you a good castor angle change( more positive castor) to help keep the car more steady on the topend, it makes it so its not twitchy with steering input.
If your going to put a complete tube chassis under the car, then the front suspension "cost" shouldnt be a factor. It would either be a tubular A arm set up or strut for the ultimate weight savings. Alston,Jegs,chassis works,etc. all sell front suspension kits if you go this route.
1972 hatchback, 28,000 orig miles, 427BBC/twin T4 turbo's/T56 six speed/big wheels, lowered down pro touring style-work in progress....
1973 vega wagon-under the blue flame knife.