[DanEC]

I guess I'm kind of confused too since I don't know anything about your background. I assume you are in a wheel chair and you are trying to fab this car to be able to enter it and sit inside in a wheel chair to drive the car? Or is this a special accommodation for the right side to be able to get wheel chair bound passengers into the car?

I would just cut it - I've done enough work in fiberglass to know what an easy material it is to work with compared to steel. I did all the restoration on my old Corvette body and the great thing is it can be cut, repaired, patched, sculpted, spliced, reinforced, etc to deal with just about any issue.