Is my question too.
As you know I restore the Hang-On cabinet and m.a.m.e. it to play more motocycle games.
My pot unit is a NOS-part including the pots, so I could go for an U-HID from UltimArc, but also have a Microsoft sidewinder steeringwheel in the basement that would be a plug and play solution if I remove its pots and mount it in the pot-unit of the Hang On.
http://www.arcadefixit.com/product.sc?productId=612&categoryId=68
Since it is a univesal steeringwheel I would assume that its software would hold a lot of paramters to adjust which could be usefull for all the games.
For the U-HID, you told me that I can wire the pots directly to it....but what comes after that? Does it have a software to tune that stuff?
I wouldn't mess with the old sidewinder wheel. I don't know a whole lot about them, but I know the force feedback used a different standard and doesn't work with modern games. Not sure if the controls or other software might also have similar quirks.
If you're going to hack a wheel, pick up a used Logitech wheel cheap because the profiler software is top notch.
Get one from the PS2 era or newer. The old formula force and red momo wheels have similar quirks to the ms sidewinder.
Personally, I'd just use the U-HID since it would be easier and you're not using force feedback.
Most emulators and games have some level of tweaking for the controls.
You really should set up the games and see how they play before going to the trouble of converting a cab.