Glad it worked out for you.
I remember going round and round with this, eventually using a combination of new and old....
I never throw old parts away, sometimes I can't find them, but that's another story...

If you rebuild the steering box keep the old sector arm... if the worm gear contact points are worn you can loosen the points, turn them 90°, weld in place and reuse the old shaft, if the shaft itself not too worn...
Repro parts seem to be about the same marginal level of quality no matter the vehicle type.....some good, some not so good.