Good question. I am on the fence with seats for my tenth. On one hand I have put the best I could find in everything else, so I dont want to waver on the seats. On the other hand, the one thing I never liked about the tenth t/a is the ugly silver seats! The replacements are not cheap, and I am going to contact a local upholsterer to see about having covers made. If I do so I will most likely change the colour. I had thought about buying silver vinyl as well. I figure if I ever get to selling the car I will pony up for the correct covers but in the meantime put something in there that I like. I have been thinking something charcoal grey.
Something else to consider is the current lead time. I spoke to legendary about door panels and they told me at least 8 months. I cant imagine seat covers are any different. Let me know what you come up with.