I have received a few sideways glances from the sales staff when I pulled up to the local dealer for parts in my W123 or W124. They do always come greet me when I pull up in my F150 though...

My local parts counter has always been extremely helpful in getting parts and always knocks a few dollars off from the already discounted MBCA price. I think the 5 speed conversion got them interested and now they want to see the car kept on the road.