The owner still says the missing parts dont affect gameplay on the listing. That is dis-honest.
You only need to watch the promo movie to see that his deskription is blatantly false. Imagine being a newbie, getting the game home, and then finding the main part/character is missing and it really changes the games whole feel. I would be pissed to say the least.

People like this give the pinball industry a bad name.  How could you possibly believe it doesnt affect gameplay, and he states that he has dropped the price because of it. So WHY would you drop the price because of it, if it doesnt affect gameplay. See, caught out in ten seconds. I cant stand people who hide behind misleading and deliberate "missing" info on ebay listings. I really hope no-one on here gets stung with it.
 

I've never owned a PZ before, but exactly what does the Cap't Bazaar head do during game play with the ball Brett?  Does the mech throw the ball to a ramp, divert it to another area on the playfield etc?

The seller clearly states the part / mechanism is missing.  How is this missing info?  You cannot get much clearer than that.