AITA for throwing my own 50th bday party?

My husband and I have been married for just under a year, together for 4. Known each other for 22 years. Last year I threw him a lovely 55th bday party. I rented a space, decorated, planned the menu, and cooked. It was a great time and my husband was very appreciative. Since then, he says he wants to throw me a party for my 50th this year. He made it clear he would need my help since he is not a planner. I want a party at a club an hour away where I used to live, with my favorite band playing. I have lots of friends there and it’s closer to my family as well. I feel like this is one of the last big celebrations of my life. We didn’t have a wedding or honeymoon, and I want a night of fun with people I care about.
My husband pays most of the bills, as he makes a lot more than I do. I buy groceries and household supplies, and do all the housework. This system works for us.
Now money has gotten tight. The main reason being that his son is about to go to vocational school on the other side of the country. His ex expects him to pay half of everything. That’s fine, but he is never consulted…. He just gets a bill for half. Then I found out my husband took out a loan for 22k for his son’s tuition. The ex and son are SUPPOSED to be responsible for a third each, but there is nothing in writing or court ordered, and the loan is in my husbands name only.
I’m not asking my husband to pay for my party. I can cover it. He suggested having it at our house, but that means no band and a lot of work for me…..which is exactly what I do not want. My husband seems like he is not on board….. and I have booked the room and band.
I know he is stressed about money, and yes, party $ could go to paying down debt or something more sensible. But I’d like to have the party I want. So AITA for throwing myself the birthday party I’ve always wanted, even without my husbands support?