I wanted to use maorikutta's MPSM side panel, but I needed it to fit an 8mm rod. The reason that I liked that design is because it includes three main features that other panels lacked:
1) I didn't need another printer and it could be printed in two parts on the MPSM.
2) It included an opening for the no-drill bed rewire.
3) The components were strong and connected with a robust set of M3 screws.
The only downside was that it was designed for a 6mm rod and linear bearing. It was much faster/cheaper for me to use an 8mm rod, so I remixed it to include a larger hole on the x-axis extension and the base. Only the parts that differ from the remixed projects are included. Check those out for the other half of the side panel.
I used four M3.0x16.0mm screws and four M3.0 nuts, but shorter screws would have been fine (no smaller than 12.0mm, probably). My configuration isn't using an attached camera or other accessories so I only needed the 8mm rod (12in length) and a single 8mm linaer bearing.
I used four outer walls to increase the strength of the part (1.6mm total).