Etc., etc.  
Here is my current wantlist.  Everything should be in 
very good condition or better - NOS preferred:
~ One 4 way top fire joystick~ Missile Command fire style buttons OR one Tempest start button with cone.~ Star Wars Yoke - fully functional and complete.  Don't really care about sticker condition.
~ Leaf switch buttons for 1/2" wood panel.  Button AND leaf, of course
~ Tapper "tap" controls
~ Repro Joust and/or Defender sticks - bases not necessary - or unscuffed original ones
~ Front Line "spinner"
~ Red reject pushie things for coin door, with graphic inserts if possible. 
Hmm. . . think that's it for now.  

Open to trades, purchase, etc.
What I have to trade.  All in okay condition and untested unless noted:~ Suzo joystick~ 2 1/4" 
working and cleaned vintage Centipede trac
~ APB control panel, very good shape, complete with
 known working wheel~ 4" Missile Command tracball - 
working and cleaned (could use new rollers but bearings are good)
~ Star Trek control panel (with spinner) with the buttons still attached.  Fair condition - may be keeping the buttons, tho.  Was a Tempest panel back in the day. . .
~ Tempest control panel bare.  Okay shape.
~ Two Wico tracs - 2"
~ At least one blue Joust joystick, complete
~ HV box/cage for Nintendo boards (DK Jr. was in there)  No end cap
~ Nintendo marquee retainers (top and bottom)
PMs work best for me. . .