this site give a pictorial on assembling tiered cakes it might help you. I usually use something with a bit more density like a pound cake. Just remember your supports and you should be fine.
http://lenascakes.blogspot.com/search?updated-max=2011-12-14T17:55:00%2B11:00&max-results=7
Tara, Nova Scotia, https://www.facebook.com/pages/Valleys-kool-cakes/131353476890032
