I have a passenger side 2nd row Chateau captain's seat in grey cloth for sale. Not sure what year van it came out of, but the seat belt receivers are NOT compatible with the buckles in my 2013 van. I'm sure someone on this forum knows the year cutoff for when the seat belt design changed.
I do NOT have the mounting bracket that bolts to the floor, though I have been more successful finding those brackets on FB/CL than I have finding the seats themselves. So I imagine whoever wants to purchase this seat would be able to find the bracket online somewhere.
In general the seat is in good condition, just a little dusty from sitting in a garage for a few years. There is a tear in the fabric on the front edge of the seat (see last photo).
Asking $100 and located in Minneapolis, MN.