I am making a cake in the shape of a 60 for dads birthday and need some help with some elements. Any suggestions/advice/tips would be greatly appreciated.

I plan on baking the cake in large rectangular pans and then use a transfer method I saw someone post about. Basically trace the number template on wax paper with piping gel and then apply the wax paper to the cake to get an outline on the cake and then carve it. Genius! But my questions are as follows:
1)   If a baking the cake in a large pan, do I need to use some method to make sure it bakes evenly?
2)  Any great recipes for chocolate cake that carves well? I have made a couple of previous cakes that came out great but I was not crazy about the texture of the cake for carving.
3)  Should I stack two cakes? I dont need more for servings but I am just worried about how the cake will look. Will only doing one cake covered in fondant be high enough/look nice?
4)  I am planning on making some fondant decorations and would like to put a printed picture on some of them. The decorations will not be eaten. Is it okay just to use regular paper and ink? I really dont want to spend the money on edible stuff since I really only make cakes a few times a year. Also, how would I stick the paper on the fondant?

Thank you in advance!

You can torte the one cake before you carve out the numbers, adding a filling to give you height.
I wouldn't use printer paper/ink on the cake. Just for safety reasons.

Durable Chocolate Cake Recipe: http://cakecentral.com/recipe/durable-cake-for-3d-in-chocolate