Table for leveling a surface plate

Well, here's another of those projects that ran away with itself. I plan to do some serious hand scraping in the future, mostly redoing my Bridgeport. I have a very accurate level, a Taylor Hobson Talyvel, with resolution of .1 arc second. This is so sensitive that you can use it for many jobs where a long precision straightedge would normally be required. I can think of some tasks in the rescraping of a Bridgeport where being able to use the level to bring the top of a part into parallelism with it's bottom could be the best approach.

So, I needed a table for the surface plate that allowed it to be accurately leveled.