There was a solace called Rocker Arm Specialties. I don't know the name any more. They can bush your rockers if you want, change the ratio a bit (IIRC) and probably have shafts in stock.
You'll have to google it as I think the name has changed.
Their name the last time I checked was Rocker Arms Unlimited. I had a set of Isky's done by them a few years ago but, I'd heard the company changed hands again since then.
They narrowed each rocker arm, bored and bushed them and provided all new hardware, shafts and hold downs. I think I paid a little over $500.
They are a work of art and are set up, spaced and ready to bolt on but, be prepared to wait. I was quoted a 2-3 week turn around time but, it was more like 3-4 months.
I'd use them again but, just not for anything I needed quickly.
I believe the name of the original owner who came back to the new company is Gary. He answers the phone; give them a call.
