I don't see any problem with you having a Quinceañera. It wouldn't hurt to let your friends know your wishes and see what they say. If someone wanted to celebrate part of my culture, I don't know... maybe Square Dancing... I would not only be happy about that, I would want to be be a part of it.
The modern Quinceañera is already a mixture of cultures. Many of the traditions are from European countries, including England and France and Spain, where young ladies coming of age were given debutante balls. Mexico has added it's own special meaning to this tradition. If you wanted to have a debutante ball, I am sure you could find something in your own heritage that would be very similar to a Quince.
My daughter is Mexican-American (I am White and her mother is Mexican). She takes things from both cultures, and she will have her Quince. We are already talking about it, and she is planning it with her own unique style that will take from all sides of her heritage and her personality.
I would say go for it.