nail on coupe trunk pan?

[Nailhead A-V8]

I have 2 trunk floor pans, 2 curved inner panels and 2 trunk lids....one of the trunk pans has notches at the front on either side where it is riveted to the crossmember (this crossmember is narrower also) and it has 2 wedge shaped brackets underneath it...around the edges where the (usual) rivet holes go there are nailholes instead...the other pan has a long steel bracket riveted to it and no wedge shaped brackets (but the bolt holes are there) it has the more common wide end and was riveted on to the subframe...
My questions are:
What year or body style did they NAIL the trunk floor down?
Were early '28 coupes or roadster on a wooden subframe?
Were cabriolets on a wood subframe?
Were some early Canadian coupes/rdstrs/cabs on wood subs?
and lastly:
Which of the 2 pans is coupe and which is roadster? or should the question be: Which pan is trunk and which is rumble seat?

Next are the curved panels...one has brackets at the bottom with rubber stoppers, a curved cast bracket riveted to it and a square hole in it...the other has rubber stoppers at the top and is a different shape...I'm guessing the one with stoppers on top is the trunk one?

And finally I'm having a tough time deciding on whether I want a trunk or a rumble seat...one of my trunk lids has a rumble seat handle at the top and is slotted for the latch but the holes for the rumble style hinges were never drilled out and there is a round hole in it at the bottom of it too! I'm confused lol...was someone running around with 2 handles on this trunklid?