Also, if you send the new lifters to Rhoads Lifters they'll modify them to compress more at low rpm allowing you to have better vacuuum at idle, not as much fuel dump with larger cams. This costs $150.
If you can find the rocker part numbers the above website will have those the cheapest i've found new, too.
Howell also has eaton? brand lifters/rockers? i think, but they're not genuine mopar parts (unless eaton is the original manufacturer). But i don't know about the price or service from Howell, i've never ordered.