Well then! Um... Okay!

Bro, this is all based on a dream: to each their own I suppose. Good luck finding her, bud.

There may be more important criteria to look for to find the girl of your mother's dreams, other than blind and brunette. Have you considered asking out girls in your local area first? Perhaps find one that has similiar interests as you?

Additionally, your mother saw her as brunette... but perhaps she was a blond who had dyed her hair?