Even if you turn the shafts over, and drill new oil holes you will still have bits of steel embedded in the old rockers and they will wear the shaft quickly. Unless you plan on doing LOTS of miles a cheap set of after market rockers and shafts should outlive you, be nice and quiet, and do their job well. Use a quality oil (20-60) and change it regularly. Thats my plan anyway - my shafts looked very much like yours.
![Image](https://i.imgur.com/jk6Rkdd.jpg)
jp 74 P6B S