Is it a bit bouncy is it?
Here's mine, going a slightly different route to yours with a duo seat and slightly different look being a Custom model. I have a build up thread on the CX 500 register for more pics. I formed up the seat and bought all the bits before christmas but have been concentrating on our business (and relaxing a bit too much) but about to start on it again shortly!
Before, stripped, and the two I'm using for ideas:
I'm trying to "copy" the brown one but using the seat off the grey model. It's pretty narrow so should look good. I need to figure out the pipe configuration and rear sets though,,,,