Early proto prices are crazy. If you are not particular about it, here is an alternative to those who are looking for 370mm prototipo style steering wheel. I got mine from karmann konnections last year. It's a flat one (non dished) for gbp289 believe shipped to the us cost less than gpb25 iiric. It aint a momo but i got the right size i wanted.
Prototipo Style Steering wheel 370mm Non dished
Here is it mounted on my 86
