Need passenger seat for my 67. will buy a pair or separtely. rears too

Hi, been a few years since I've had an Econoline or been on this forum (had to make a new name) but I'm back with a 67 windowed heavy duty super. It's missing the passenger seat.

I know these are getting hard to find but I'm wiling to pay a fair $$$ price for a passenger seat, or even a pair, or just a drivers seat.

Also would love to find either of the rear seats, but I know I may be dreaming there.