I was asked to do this cake, but it needs to feed about 40 people. I know there are similar cakes out there, and the client is open to various options, but I wanted to get a general idea as to what some of you might charge b/c I want to be sure to not undercharge. My 1/2 sheetcakes start at $50 for a basic cake, 2 layers, so I'm thinking somewhere around $150? Too much? Too little?