I installed a Momo 350mm wheel (similar to the Momo Tuner) and their wheel hub kit on my '81 Turismo.
The original wheel on the car was the very same wheel as the GLHS cars.
Because of the large offset of the original wheel and the flat style of the Momo, I had to buy 2 extra spacer kits so the flat Momo wheel would clear the Gauge pod.
I would assume it's the same with the Grant wheel.
Here's what the Momo hub looks like:
Steering Wheel Hub - BMW 2002
momo.com
This is a collapsible style that's required when using a flat wheel.
Remember that the Charger and Omni wheels have a deep dish to avoid contact in a front end collision, and don't require this.