I recommend you to use the case from @flux_sniffer,I personnaly used it for mine and I really love it,especially the litte interruptor on the top of the console.The files are on the third page of this thread
Yes,the case was made for 4layertech's board,so it's definitly compatible with the gc+2,the pms2/lite,the pms-pd 3 and the uamp
Edit:
But actually,if you want to build something similar,with less wires(actually none lol) and more modern,I would recommend you to check @Xenii Xii boy ultr,and,if you're a little patient,you can also wait for his kits to launch