You could get some info by reading through some of these threads:
Also check out this article:
Remember that pricing varies across the country. I'm assuming you are legal, have permission to replicate Disney copyrighted material, etc. etc. Here in Charleston, SC, my pricing would be about $45. However, I normally only do 2 layer cakes as "smash" cakes or very special promos. A 6" four layer (my smallest) would run $50.
oops, page didn't link because that site is down. It is the Cake Boss Software site. They have a great article about pricing.
Would be $30 for me.
AWe would charge $74 (4" high, 2 layers) including fondant and the design, but that doesn't really help you since our market and cost structure (ingredients, labor, and overhead) is probably completely different from yours.
As mentioned above, the customer would need to provide written permission from Disney before ordering the design pictured.
In Chicago burbs, it would be $35. to $40..