The 1g blank plates are only $4.xx. If you have someone with a manual milling machine might be worth it to see how cutting one down comes out. (The idea is to use 3 plates, trim one side of each of the outer plates and both sides of the center plate an equal amount. Done right you should be left with two barely visible vertical lines where the 3 plates butt together) I feel like a mill is the best way (short of a more exotic process) to get a clean square cut edge, accurate enough where you won't have a gap between plates. A saw won't do it.