I am making a wedding cake for my brother. They want 4 tiers. I want to use the pans I already have as this is a gift and I would prefer not to buy a new pan. The cake will need to serve 100, they will be serving the top tier. It will be buttercream with a minimal border and gumpaste fall leaves as the only decorations and embellishments. I was thinking 6, 10, 12, 14 , but Im uncertain. I want enough space between each tier to place a few gumpaste leaves but I also want the cake to be tall and elegant. I own pans 6,8,10,12,14. Any advice would be appreciated :) Also, I would rather have too much cake and a grand looking wedding cake than the right number of servings and a squatty cake.