Morse MV 2, steering wheel button original key

Does anyone have any parts for the MV2 throttle/shifter control? specifically the lock mechanism. my release that is below the knob won't return back to the lock position and can be shifted into gear without lifting the lock/safety latch. is that repairable or does anyone know where to get a complete assembly or parts kit? I want to keep the same set up so it stays original. I see there is an allen/hex screw on the bottom. haven't messed with it yet but possibly that is adjustment for the lock spring tension?

Am also looking for a new steering wheel center button or pad. mine has the colored waves with white background

and the longest shot of all would be an original key. I believe it is a 2 piece design with the supra logo and waves on the round head of the key

thanks, any help and suggestions are appreciated