I've got two, both purchased new right around the time they started to disappear from the shelf stock of the big NYC camera stores. Equipped mine with Winder LX's and FA-1W Finders, though I've also got the FB-1 System Bases and all three eyepieces that I also play with from time to time
I put Beattie Intenscreens in mine (grounglass only, no microprism or split image, just a circle mark in the center).
How do you like yours? Winder? Motor Drive (and Motor Drive power option)? Body only? Preferred finder/focusing screens? Interesting to know what variations people use with theirs.