This is one off thing I'm doing at home for personal use and has no comercial value. Parts cost is $1.5 for a new mouse, and the rest from junk at my lab.
I'm still not convinced that a wedge is a better solution in this case for it involves far more effort and parts.
If it was going comercial then you are right the wedge solution is better because you can manufactuer a box easily with the right connectors and plug mouse into it without the hassle.
Mahmood