Got some for free, but cash wise:
$20 FH about ten years ago which came with RS purchase. I was whining about non working Ted s head to the op which was selling the RS and he offered me a $20 FH to use Rudy s parts on Ted.
More recent deal - $180 for working CFTBL last year (pics below).
Waiting for more space -> trade for my (got it for free) 80s bagatelle type of game for one of the following machines: Zaccaria Moon Flight, Funhouse, Space Invaders, Taxi or Skateball.