Not sure if anyone is interested, but here is a prototype of a 3D printed SFF style water cooled case, I designed. It measures 410x235x290mm, takes up to mATX board, 360mm custom loop, and full size psu. Current prototype is just over 1500 grams of PLA, 84 hours to print, and cost should be under 70$ in parts/supplies. Goal is positive pressure case with filters. Working on printed version two with all the tweaks from testing. Nicknaming it, The Hatchback.