Just get a set of these. At only $54 a set and $15 for the amp, they will sound just fine. They have Vidsonix waterproof hot tub speakers in them and they have plenty of power capacity for the amp. I used a pair of they're speakers in a custom project for my T a few years ago. I sent them some photos of what I did and suggested they might could come up with their own housings to fit the speakers into. Six months later they sent me an email with what they developed, and a month later they were offering these options.

http://www.marinavox.com/moto/html/pastore.html

Stan

image
Current love; 2004 GL1800 CSC Cobra trike (silver/white).
Past love; 1999 Ace Tourer (Silver over Black)

image