If machining the bushes, just bear in mind that very few of the stubaxle bush housings are 'true'. The main component of the stub axle is cast; the two housings for the bushes are steel tube welded to the casting.
However good the jig used for alignment, the heat generated by the welding process followed by the subsequent differential cooling of the casting and tube produces distortion; maybe not a lot but enough to mean that the thing will need reaming again resulting in increased clearances. It's another reason why installing and reaming the bushes separately doesn't work.
