here is a few links to the enclosure i have been working on for the mks based onstep. i "think" the mount points should be correct but that depends a lot on the printer. the lid is an interference fit, i left holes for bolts to be ran in to remove the cover. any questions feel free to ask.

box
https://www.tinkercad.com/things/jLed9fkKYuF

lid
https://www.tinkercad.com/things/88DJaSQi5L8