I am looking for maps for Heroes III.

Hello, my friend and I decided to get together for the night and play Heroes, just like in the good old days. Since we only have one computer, we don't want to play against each other, so we want to play together against the AI. Could you please recommend an interesting map for two players, with lots of monsters, artifacts, Pandora's Boxes, Utopias, etc.? We'd prefer a map size of L, so that we can finish it in about 8-10 hours. Please don't suggest overly difficult maps, as our skill level is not very high.

Thank you in advance!