i dont know how much those door panels cost, but my upholstery guy only charges ABOUT $100 per side to make some. He's going to use my old metal ones and make some custom panels with arm rests. He's also going to add the more modern clips instead of the screws to secure them to the doors......
I had him redue my seat to look like the mid 90's check seats...new form and (fake but nice) leather, was only $350 where I think the original foam alone is $250.