My focus is William III atm, but doing a monarch run myself, you can get a good distance back fairly cheaply, although James II and the Tudor Period (except lizzie 1) and the Commonwealth cost a bit more. then pre-war of the roses all the way back to the Norman Period, again cheap. want to go back that far I recommend buying up bulk lots of Hammered, last lot i got contained Henry VIII possible Mary, Elizabeth , Edward I/II/III (even a scarcer mint)