Need Full Exhaust System on an 84 K10

[SourTooth307]

Hi everyone, I just bought an 84 K10 Scottsdale from a guy out in PA and I need to do the exhaust system to pass emissions inspection in NJ. I'm pretty much throwing everything from the manifolds back in the scrap heap since the headers are shot and taped up and everything past that is just rusty straight pipes that end after the cab. My truck has an Edelbrock carbed 350 V8, no A/C, pretty much just a water pump and alternator.

I'm looking to do a dual set up with a Y-pipe and a single cat. I'm trying to not go too far over $500 on the parts, and I want the best parts of it to be the headers and the cat. Does anyone know where I can get the parts for the best price? I'm into just grabbing the stuff from a parts store around me but if I can do better online I wouldn't mind going that route. Anyone got any suggestions?