YES, this....Check with rocker arm rebuilders in Redding CA (area) (or whatever their new name is) they had some outstanding rockers but I do not know if they are still in production
they are a good source of info on rockers and shafts- would trust their advice...
ROCKER ARMS UNLIMITED
http://www.rockerarms.com/pages/about.html
They could re-build/manufacture anything you want.
The website does not do their business justice, CALL & TALK TO GARY (owner).
The company was called RAS as in Andy F's article. It has been revived/improved since then.
I have some of their SS bushed ones going in my engine & they are fantastic.