I'm planning on a 5 mold order come next year (after taxes get done) and I know the ruined fieldstone mold is at the top of the list. I would add an 8" tower mold, a ruined tower mold, and an octagon tower mold plus most likely the mysterious mold you mentioned.

Tower of the Archmage

HA # 43, 45, 50, 53, 61, 63, 65, 70*2, 71*2, 72, 73, 74, 80, 201, 240, 250, 260*2, 300