Congrats and best wishes!
To save some green, I love the idea of a beautiful fake "cake", which is nothing more than foam covered in fondant (I think that thick, fancy cake covering is called) out for everyone to ooha and ahh over, but the guests actually get cut slices of a much less expensive but delicious sheet cake in the back
Maybe you could negotiate down the price on the cake cutting fee, what a rip!
Yeah, getting married in jeans with a judge was fun, but not going into the marriage in debt....priceless!
Good luck!