Depending on condition, I've see prices as low as $30 for junk-bin Zs and as high as $130 for nice ones from some dreamers.
The typical price for a decent condition seems to be in the $60-80 range. I paid $80 for a fairly nice one from a shop.
Sorry, I can't help you on the other items, as I'm not a standard gauge person.
$200.00 plus in the chicago area for a Z and $125.00 for V's.
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