I should have the case for your XL boards ready in a couple days...I am healing up from a mishap I had with a DPS750 PSU fan, ugh...gashed my thumb pretty good.
The base is pretty much set, just gotta add board securing holes and finish up the lid. For some reason due to the tolerances that these printers print, getting the parts to interface just right is a bit tricky and I am very critical of my own work.