What about one of every attack building, of every level. (One T1 level 1 Workshop, onw T2 level 2 Workshop, etc.) That would be 9 T1, 9 T2, 9 T3, and 9 T4 for a total of 36 buildings...37 counting your castle. Then add in one of each Guild, and one of each SoS, and you have a total of 44 build lands. Fill those lands in with different types of towers and you can have a build more diverse than anyone else.