My rocker assy had alot of wear, I just brought four new rocker shafts as the old ones were badly scored & worn. I had my fingers crossed that the new pins would be enough but it seems the bushes in the rockers are worn as well. (more bloody money!). I haven't seen the bushes for sale individually... are they ?
If not I'm considering getting some bushes made up & reaming them to suit the new pins.