2204 Chassis CAD files?

[LSDtigers]

I’ve got this wild idea to waterjet CNC cut the chassis for my next amp project from raw stock sheet metal. Just to see if I can do it and make it look good. I’ve got access to the equipment and tools to cut, bend and spot weld the chassis, but what I don’t have is a standard dimension CAD file or detailed technical drawings for the 2204 short box. I’ve searched the internet and asked over at the Marshall forum, with no luck. I’m looking for Marshall correct dimensions and cutout placement to allow the purchase of a standard size faceplate from a vendor without having to worry about everything lining up properly when I install it. Lots of vendors offer project kits with dimensionally accurate 2204 boxes, and I know these kit boxes aren’t drilled by hand. Could one of you guys please point me in the right direction? Thank you!