A-arms are ok but not stock a-arms. If you go with a full chassis you need to step up to some lighter tubular arms. Struts are better but its not like the arms wont work especially on a short wb car like a vega. streetable? Heres where things get more expensive. You here about all the ten second 'street' cars around. Well I know a guy with one, it will run sub 10 second passes on motor with nothing more than bolting on slicks. On the street the thing actually rides nice but he had to spend a MINT to get it that way. Lots of things a street car needs that a race car doesnt and that translates to weight which in turn needs more power to go fast which in turn takes more money. A full chassis/tin interior race car will go down the road but not with any comfort. Better get some earplugs too, tin interiors rattle like hell over potholes. You either need to go mild street/strip with driveability or build a race car. Ive got it in my head that I can build a footbrake 10 second flat race car from scratch for ten grand! Some may not believe but with what I can do myself (everything) and scrounging parts and a little brain melt i know it can be done. I was doing it with a 40 dodge coupe until I got into my nova project.