I have a hotrodse cp, an
ugly byo cp with a spinner (with two trigger joysticks & cp buttons), and a trackball mounted on a test box of unpainted OSB without buttons.
I'd gladly lend the hotrod and others, but ...
The ugly spinner board needs heavy springs for both the trigger joys for a non-wimpy feel, and the spinner needs to be "adjusted" a little (it's too close to the cp to get a good handle on). (Maybe a different knob would work, also.) Only the top is painted (dark green), and the unpainted sides/bottom show the partical board, glue, etc.
**added** The joysticks are hacked happs competitions, and I still have the original shafts, so I could pull out the trigger sticks and put in the original shafts if you want. It uses an IPAC for the sticks & buttons, and an OSCAR with USB or PS/2 plugs.**The test trackball box, well, the trackball works great. That's all I can say about it, and besides the lack of buttons, no paint, and the spinters I sometimes get, it works.
**added** The trackball is a 3" with happs USB interface. I can drill holes & add 3 buttons through USB interface (quickest), up to constuct another cp with the trackball and buttons hooked through the other IPAC I have.**I
might be able to do the fixes (above) to the two built-my-owns, but it depends on work and if I get over this cold I got beginning of this week and still have.

The other big problem is getting the stuff over to you. I am
not a morning person, and I live just north of Berkelely (1 hour drive w/ no traffic, no cops), so if that adds any problems.... Maybe I should get them to you Thurday or Friday before the thing starts.
BTW, I can post pictures Sunday. I'll be busy all day Saturday, so I can't reply until Sunday either. email: (remove the "REMOVE") urebel@REMOVEusa.net or check my site, in sig.
**added:
Current spinner cp:
http://www.urebelscum.speedhost.com/cabimages/images/spinnercp2.jpgSpinner cp with one trigger, one competition (old pic):
http://www.urebelscum.speedhost.com/cabimages/images/spinnercp.jpgTest trackball box:
http://www.urebelscum.speedhost.com/cabimages/images/trackballcp.jpgTest box & wrinkle black mounting plate.
http://www.urebelscum.speedhost.com/cabimages/images/trackballcp2.jpg