I resized RotoScan's cable chains to be the same size as the existing cable rail on the Monoselect V2. Because the bed heater cables are soldered and I didn't want to cut them I cut alternating slots into the bottom of the cable chain.
Just print 17 of them (9 pairs) and add them one by one and then snap them together.
I had to drill the hole out to 3mm in the end chain to screw it to the frame using the bottom screw going into the stepper motor. The other end is on top and cleans it up nicely.
Secure with small zip ties.
came across http://www.thingiverse.com/thing:193948 which is a clever and more clean solution
edited RotoScan's stl files in TinkerCAD