Dang Rocker Shafts Too Soft

Would buying a set of good shafts, like Harland Sharpe, salvage the rockers? Definitely would have to go through everything and clean everything up. People run needle bearings on shafts all the time. You just have to do it right. Cheap never works for me.
That is one thing I have thought of.... but with the Nationals coming up in <2 months, my son and I are just gonna try some known better units. Long term, I might try something with the rockers themselves with better shafts, if the needles still look OK, or see if the seller will send some better shafts.

I looked into buying or finding a Brinnell tester here locally when I got these rockers and shafts just to check the shaft hardness. If there is ever time, I might still do that. It would be one of those 'good to know' things...