68 hot rod black barracuda

My barracuda is all but done, as it is below 0 I need to wait for better weather to work out the road test bugs, the matte black turned out great although I am not sure how to maintain it
Maybe some one can help me with a few last details, I cannot find the trim that covers the body pinch weld at the rear of the door opening, I have heard of this being called a wind lace moulding, a pinch weld cover, if I knew the correct name that would help with my search. I also need the black plastic knob that goes on the seat adjuster, any help would be appreciated.