I know that as far as weddings are concerned, the event must take place after park hours and the minimum is $52,000! It most likely will be at CRT, although it may also be in front of the castle outside too (hey, you never know and it has been done for weddings). I know for the current celebrations no weddings are taking place in the MK, so your friend is very lucky to be attending a private event at the MK! I hope she comes back with lots of stories and pictures for you!