Another New Episode of "What's this part !"

#5 trim is not 66-70 B body convert, I have them

#2 is seat back side trim. I have that on a 1961 Chrysler 300 bucket seat. I've seen them on other full size seats of the era. The angle on one end is different but the contours and shape are the same on 63's also. Those may be 63 by part number.

#1 not sure, not on the 61 seat from above but it could be seats.