My door panels and seat covers survived 63 years and are in amazing shape so I did not replace them. I did replace all windlacing. CARS in Michigan has a good supply of interior components and they supplied me with the windlacing.
Member jmt455 restored his '58 Buick wagon, he and member RMay are just about our forum's interior experts, you may want to send them PMs with your interior questions, see if either or both can answer them.
This is jmt's Caballero resto thread, from the beginning: http://www.stationwagonforums.com/forums/threads/1958-buick-caballero.32581/
