74 Duster 4 banger Street/Strip Build

I got my front frame rails made up, still need to cut them to length once I get them in there. I'm working on the rear now, and I'm torn on what I want. On one hand, I was thinking pre-made 4 link. On the other hand, I was thinking of ordering Autoweldchassis www.autoweldchassis.com pre-made 2x3 frame rails for a Duster and then running mono-leaf and Cal-Tracs. Any input fellas?

Does anyone make a premade 4 link specifically for A-Body?

Thanks guys! You can see the front frame rails in this pic. Sorry it's a mess, it was getting late last night and I was getting tired quick!
Stock location caltrac mono's! Don't back half the car- would be even more impressive if you did it with a stock chassis!