I wanted to have our reception there and was told we could but could not wear our wedding attire. They only allow you to wear your dress and tux in the park for the MK photo package or Illumination desert party. I love tigger so I was very disappointed.
As far as I am aware Louisa you can only have a "full and proper" wedding reception in MK if you pay the $52K.
Of course you can go and celebrate your wedding in any of the restaurants in the MK on the day of your wedding, during opening hours, but you won't be able to be in your wedding attire and I don't think you'll be able to get your cake delivered.
But there's nothing wrong with just asking, but I fear they would turn you down as it would set a very dangerous precedent