Your drawings show diagonal bracing for strength which the M3W lacks. Wont the transverse diagonal brace to left of gearbox severely obstruct your legs?
It shouldn't. The transmission that is modeled is a NC transmission as thats all I could find a model for. The NB transmission I am using has the shifter farther back as well. The brace should be at the end of the footwell. These drawings are pretty fluid at this point and I am sure there will be improvements and modifications coming.