1963 Dart Headliner questions

I am getting ready to start the interior of my 63 Dart 170 2dr sedan and had a few questions about the headliner.

When I purchased the car it only had the front headliner bow and was missing all others. I was fortunate that a yard here had a 64 hardtop that I was able to scrounge the bows out of.

I noticed the 64 had an extra slot at the rear for a 6th bow that my 63 sedan doesn't and after some research I am reading that some had 5 and some had 6 bows. Is this correct? Is there any way to confirm which my car should have had? If anyone on here has a 5 bow 63-66 with the headliner currently removed a picture or 2 would be great to see.

Another dilemma I have found is that multiple places don't differentiate between 5 and 6 bow headliners. One states 2 and 4 door sedan (but I know I found a 64 4door sedan with 6 bows as I removed the rear windshield brace from it)

I am pretty sure my car only came with 5 as I am unable to determine where the 6th bow would go. The other 5 are clear. On the cars with 6 I noticed a slot that a clip that was attached to the bow would slide into and a pair of wire clips that held the bow towards the rear attaching to the rear windshield inner roof support.

Any other info I can get would be great to determine how to piece this back together and a possible source for my headliner would be appreciated as well.
Did you get this done? pics?