You will want to make some size changes to accommodate that. My build only has about 5mm extra on each side. JJ added 25 or 50mm on one side. It is a bit of a change but JJ or Mike can probably share their cad so you have it all. Doing that is a bigger change than it sounds.
Adding that previous stuff will change it all and I am not sure how the CAD will behave. I made a decision yesterday to move on to Onshape for my next builds, fusion CAD seems to just not agree with me. If those buys share their builds CAD you should have the panels already as well. My CAD SHOULD work if you change the size to larger and move the bed’s center position.
This also means my metal parts kit on the site might not work for the bed mounts.
4x447
6x425
3x287
5x427
1x342
1x375