I'am currently going through a similar dilemma. I like the old school stock rims but don't like the tube type tyres and it's hard to find a set of rims in what I would call serviceable
Condition.
I figure there are a few different options.
There are a couple of companies around that make blank rim barrels. Get a rim made to whatever size you want and weld the stick centre into the new rim barrel.
A standard 8.25 x 22.5 domountable type rim has the correct id to accept the stock 20inch centre hub.
The biggest problem is tyre size, rolling diameter and width. it's pretty easy to get caught up putting cool looking wheels on but if they arnt the right diameter to suit your final drive ratios it's all pointless. To replace the 7.50x20 I need a 225/70/22.5 which don't exist..
The next hurdle is cost. Getting centres welded and balanced isn't a cheap exercise.
At this stage I have settled on some 7.5x22.5 alcoas that iam going to run 255/70/22.5 on with some custom made adaptors. The duallies are going to end up 100mm wider each side so not ideal for everyone but should work for me. I have a stock 5.43 final drive that will work well with most petrol motor applications at 100kmph.

Last edited by Digga1111; 07/10/2018 11:31 AM. Reason: D