I have up for sale a Williams Sys11 - Jokerz - http://www.ipdb.org/machine.cgi?id=1308 - Recently shopped. All new rubbers, Super Bands, new Rottendog MPU, Some tasteful LEDs, new ramps and upper playfield, new card wheel (still in plastic yet to be opened or installed), new plastics... Cabinet is like a 6.5/10. Playfield has a couple minor mylar bubbles over a couple inserts, but is in good shape.

This machine was the one at the Louisville Arcade Expo. Played perfect all weekend with nonstop play 2 years in a row. Plays great! In my attached garage now. Cash and Carry with no stairs. My wife is giving me two weeks to move it. If I have to move it back to the basement; I'm keeping it.

You can see a walk around and short gameplay example below.

I am also open to using this as a partial trade if you are willing to part with:
-NBA Fastbreak
-Diner
-Flintstones
-...maybe others? Send offers (Wifes choice, not mine, so will need to check with her on other offers. She wants to keep Jokerz. It is a great game, but I'm ready for something new since it already out of the basement)