Brought home a 71 Duster

After mounting these tires and getting it running this weekend. I need to come up with an exhaust system from the muffler back. Any cheap manifold back systems out there you guys are aware of other than TTI or accurate exhaust they are nice but too rich for my blood I think. I may just find a cheap muffler, weld it up and come up with a tail piece. I do like the idea of stepping up from 13/4” pipe to a 2” or evening 2.5” pipe all the way back if the price is right.