Wedding guest apparel - help!!!

The date snuck up on me. I have an upcoming wedding on the 24 that I need clothes for!

I need to be able to move in them fairly easily because I’m a photographer (+ a guest).

I would love to buy something that will last awhile, preferably not fast fashion (tho time constraints may make it hard), and I'm open to having it tailored if that process doesn’t take too long. (never done it before)

I have short bright pink hair and lots of tattoos and big boobs and would prefer something that is flattering but also not designed for a thin body like the ones modeling clothes on most websites. I’m genderqueer and down for jumpsuits, dresses, suits, etc. Flexible in that dept.

Any suggestions?? thanks so much!!