Just a comment I hope you are aware of. In the blank you have the big ends sized to fit the bronze bushings, right? What happens to that size when you saw cut the cap off? The "hole" will be egg shaped, missing the material the saw removed. When you bolt the cap back on, with the bronze bushing in place, it will keep the cap from clamping to the rod.
You may be planning to make the cap separately but, from the way you are machining the whole rod, I don't think you realize there will be a problem. Making the cap separately, bolting the pieces together boring and THEN sizing for your bushing will make it right.
This is the way automotive caps and rods are sized.
Mark