If you've not been an attender there before, then go with open eyes, and a closed wallet, at least at first. I say that just because of your inexperience, but having said that, it's one of the best fairs around, and if you see one of our forum members there with a table, like Rob or Derek, I know they will offer you a wealth of advice. Your collecting area is pretty modern, but the early part especially Edward VII can be very pricy unless you are prepared to collect low grades (not my recommendation). However, George VI you could get at your budgeted price - say GEF up to UNC.