$2,000 each? Ridiculous prices that you don't need to pay. There are dozens of very sensibly priced, comfortable, well made, sturdy alternatives. Many of them are shipped to you partially unassembled and you simply bolt/screw them together in 30 minutes or less. Be very sure to only buy ones that have a foot rest. Very important, healthful leg/knee resting amenity between turns at the table, for you and your guests/playing buddies.
Also, any local Japanese craftsman somewhat near you would be thrilled to produce four of them from a photo, in woods (or stains) that match the room for that $2,000 amount, and no international shipping cost involved. And he can provide adjustable foot rest bolt hole positions (a real and thoughtful convenience) so your shorter guests can more easily hop onto the high seats. And arm rests are always found on good spectator chairs -- even very reasonably priced ones.
Arnaldo,