So the vendors sell two seat kits for the 1949 trucks. Spanish grain brown and spanish grain maroon. They also sell coordinating door panels for each of those colors. I am planning to not use the cardboard door panels as they appear to be prone to disintegrate rather quickly in high moisture conditions (we have very high humidity typically) but assume the door panel covering matches the seat material.

What about visors and headliners. For the same reason as the doors, I want to use something other than cardboard for the headliner. I may have to buy it to build a pattern from, but they aren't terribly expensive. Just curious what they were covered with? Conventional wisdom in current trucks would have been the same as the seat material, but I am finding that this is not the case. Ultimately I will go either brown or maroon (truck will be painted cape maroon, but not certain that I will select maroon seats as they may not coordinate properly). I've gleaned that Jim Carters sells the most accurate seat cover kit, but I plan to do a little upgrade on the seat stuffing.