Jon, I have something like that I've put together from my machines. However I find it easier to take the feet and try them on instead of using the calipers.
Yesterday I went through Free and New Royal, then National, New Home, Standard and White. So I got through the bulk of that. Then on to the "oddballs" and I've got Florence, American #7, New Williams, Household, Demorest, Wilcox & Gibbs.
Most of what I have left is Davis, Wheeler Wilson and then some I'm not sure about. I had gone through the Davis before and I think I already have sets for them, so all on the table may be extras.
After I get through the bobbins (round and long) and shuttles, then I'll start working on putting together a chart using all the top clamp machines I have.