D315 Compression tester

Recently I was trying to find a compression tester for my D47u. I tried everyplace I could find that sold that sort of equipment. Nobody even had a suggestion where to find one. I posted here and a couple other places. I got nothing. I came up with a solution. I thought I'd post it here for anyone who may have the same issue in the future. I already had a diesel compression tester. Nothing fancy, got it on Amazon for just under $40.00. It comes with several adapters, none to fit a D315.I made a bracket so the adapter that fits a Perkins and I think also the D4400 can be used. And after cutting a slot, it fits in the case the tester came in. I used a short piece of angle from an old bed frame, 4" angle grinder, a ruler , and a piece of soap stone. There are two pieces which bolt onto the head using the studs on each side of the injectors. The two pieces are mirror images. I'm posting a crude drawing with the measurements,and a picture of it installed. Hope this might help someone.