69 fastback cargo area - re-install S/M interior trim / seat??

i did my 69 twice this summer ,once to drive then again when I got the new carpet , I'm pretty sure I started with the upper trim pieces that wrap the window and back seat area , screwed loosely to allow a little movement for when you tuck the side panels under them, then the cargo floor then the 2 cargo side panels then seat back then the seat bottom , are you carpeting the cargo area ala deluxe interior or just the floor piece ? The carpet makes a huge difference in the fit .