Using the dimensions in the Manual, I wonder if there is support for the commercial development of an EMGS platform edge alignment and construction gauge and a passing clearance alignment and construction gauge, in both 18.2 and 18.83?
So there may not be a huge appetite for these things in P4. For EM modellers it may be a different story. The multigauge itself is made from steel, about a millimetre thick, so it is quite robust. I have mine, and the instructions, sitting in front of me, as it is always handy for quick checks. It normally lives with other gauges in my toolbox for that reason.