Mom’s Birthday Idea and Feedback!?


Ok well my mother's turning 42 in about three weeks and I am unsure of what to buy her. Clothes are out of the question and as far as handbags and accessories, she already buys her own and I have already given her some stuff. She buys from designers such as Gucci, Prada, Coach, Fendi,etc. I already have flowers on the list but dont know what else. My father will probably take her to dinner. She mentioned she wanted a spa day and I will probably do that as well but what else would be thoughtful? Also I have started to plan her 50th Birthday Party which is in about 8 years but I already have close to 10k saved and I am planning to have it in a very nice hotel ballroom here in town and have guests fly in from all over the U.S. and it to be a complete surprise! The budget for the party will probably be 50k+ but I do still have time to plan this. I am 18 at the moment so i still have time and my brother and dad will help in when the date gets closer. Is this a good idea?
The theme for the party is Mom: This is your life so its not so gloomy! There will be music and a live band and relatives from her childhood who live in different states. We will have Mariachi and food for 250+ guests. Here day will start with a complete relaxation treatment and hitting the spa and hair salon and being picked up by a limo with my father and it will be planned as a "dinner". Once she arrives she will notice that everyone is there for her! The ballroom at the moment runs close to 25k+ and it might escalate more within the next years and then factor in food, entertaintment, decorations, guest accomadations, transportaion! Whew! Yet she is worth every single penny:] Advice on how to get the most out of my money would be much APPRECIATED!!
Well I have it saved in CDS and from personal savings and gifts throughout the years from relatives. i am going to school right now and tution is paid by my parents so they asked me to save my money. A dream vaction would almost wipe out my current savings! lol. I dont think I will end up saving all the money that I save within the next few years on the party, I might want to save for a house down payment or future expenses like med school.