Mosko mount for any bag

I wanted to design a mount that would allow me to use the Mosko mount on the rack with any other bag. You print the inner and outer pieces and bolt them together through the fabric of the bag. You can then slide the bag down onto the Mosko mount that's on the rack. There is no locking mechanism, so I used the straps on the soft bags themselves to anchor it down. Once the bag settles, they have never moved. I fell several times and they stood up fine. They are printed out of PETG  HF. You will need 8 M6 x 35mm bolts, washers and lock nuts per side. I bought stainless ones on Amazon with a tapered head, see pictures. Would probably work with something like a Pelican or Nanuk plastic case, in which case you wouldn't need to print the inner part. I would use a different bolt head with a large washer on the inside of the case. Then you would have to figure out some sort of locking mechanism.