Well, maybe the cheap rockers are close in price, but good rockers....that is a different story. Granted, I don't know squat about Chevy's, but this was the first hit I got on Summit for both BB Chevy and BB Mopar for a set of Harland Sharps:
http://www.summitracing.com/parts/CSP-S70015K/
http://www.summitracing.com/parts/CSP-S2001/
About $260 for the BB Chevy, and about $660 for the BB Mopar.
Mopars are expensive to build, but I would not trade my 19 years of fun/pain with my 67 Barracuda for nothin.:D