~?25 would be fair, I'm not being cheap but the prices its going for on ebay are far too high

Has to be PAL (i think anywhere in europe is fine to work on a uk GCN, but i'm not sure)
I just need a shop that stocks it atm, they all seem to have no copies left. One of my friends had it in january but the tit sold it for ?10.
I looked in computer exchange but they don't have any atm. Gamestation didn't have any copies. Local shadey guy didn't have any but said he sells it for ?20.