Interior Trim Restore
 

I am brand new to this forum, not very computer techy, so bare with me I hope I do this correctly.
My 1963 1/2 Galaxie fastback door and window trim paint has texture or has a kind of leather-grain look. How can they be restored and maintain the leather-grain look in the paint?
Also, I need certain parts. I have tried Dennis Carpenter, MAC, Dearborn Classics, with no success. Can anyone provide me with a good source(s) for a 1963 1/2 fastback Galaxie?
Kindest Regards,
David