Hi Lowell,
I bought a set of grey rubber mats some time ago. I think they even came with MB part numbers, but I had to cut some holes for the dimmer switch, etc. on the LH mat. I was surprised (because it seems a LH mat for a RHD car), but it's not difficult to adapt it, and if you cut it with care, the final result is good.
Regards,
Albert de la Torre Chavalera
Barcelona (Catalunya/Spain)
Feb.'64 230 SL Euro 113042-10-002432