For anyone wanting to convert the A body from 5x4 over to 5x4.5

Well my desire to make it hub centric was based on paranoia, not necessity. Hub centric does not mean centered. It refers to where the weight of the vehicle will be displaced... ie the lugs or the hub of the axle.

Actually, once the lug nuts are properly torqued, the load isn't on the hub or lug bolts.

The load is on the friction interface between the wheel and its mounting surface (brake drum (then brake drum to axle flange) or disk rotor)