My suggestion is if you do not find two chairs, find someone who has the chairs you want, get pictures and measurements from them. Find a GOOD wood craftsman who makes furniture. He/she can then make you two chairs almost identical to the chairs that came with the coach. Find upholstery you like or see if they still make that fabric pattern. Order/buy fabric and get the chairs upholstered.
I use my Beaver table in my house. I only have 2 chairs and need 2 more. I have not been able to beg, steal, buy two chairs like them. Now that we have found a great wood craftsman in Cocoa, Florida, next winter we will be getting him to make us two more chairs. Then I will get all 4 upholstered in the same fabric.
Good Luck, Connie B.