I just won this auction: http://cgi.ebay.com/ws/eBayISAPI.dl...3D&viewitem=&sspagename=ADME:B:EOIBSA:US:1123 For $14 with shipping included I get both the 1918 and 1919 KN British pennies, plus several other earlier dates. The 1919 KN is the only one I actually need for my collection, but I feel like I could probably resell the others and probably at least break even and still have the 1919 for my set.
That is cool that you have a set by date! I have been trying to get one really nice example of each type of Great Britain Penny. Here is one I got this last Saturday in Westchester New York.
I'm more focused as a collector on getting one of everything than in getting the best condition for everything. I try to balance out the cost with the condition so I can get the coins without paying too much for them. It works for me. I do appreciate the really good condition coins though. Yours is nice.