Bump! Let's try it this way. Willing to part out at the following prices

RB-67 Pro-S Body + 120 back + WLF finder - 200
Mamiya Sekor 90mm f/3.8 - 150
Mamiya Sekor C 127mm f/3.8 - 120
Mamiya K/L 180mm f/4.5 - 180
Metering chimney finder (with working meter, not checked for accuracy, though it seems pretty accurate) - 100
Polaroid packfilm back (not the NPC one. This gives a centered image ~ 7x7cm, bordered by two 1.5cm dark strips) - 120

Add 3% for Paypal (no paypal fees if you use gift option) and shipping. Make me offers!