Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:3734459.
This is a remix of https://www.thingiverse.com/thing:2198351 for the cable routing and https://www.thingiverse.com/thing:1975739 for the hole distance.
I just got my Monoprice Select Mini v2 and don't have spare screws that matched the hole size of Leesamn's bed cable chain mount and saw 79DieselRabbit's GoPro mount that used the Y Axis guide rail screws. I combined the original bed cable mount and used the GoPro mount for distance and screw size info.
If you are using this or Leesamn's design, you will need to remove the connector for the bed heating cable to run it through the hole. Push the metal pin tab down and pull out. Label which cable goes to which size of the connector (just in case).