Unicycle Specs

I really appreciate Ken Fuchs’ section of the FAQ that lists the varying levels
of quality of the different unicycle parts. Now I’m wondering if someone out
there has a list of where the different brands and models fit in to each of
these categories. I’m sure I could spend some time on the phone and gather the
specs on some unicycles, but if somone has already done this why should I
reinvent the…nevermind, I won’t say it.

By the way, if I buy a standard 24" unicycle can I change the wheel size fairly
easily. For example, could I swap the 24" wheel with a 20" or 26" wheel without
much problem. (Sorry if this is a stupid question.)