Being my "suggestions" have already been discounted, I'll defer to some "quirks" that I found in the Osborn produced Mustang Assembly Manuals. If you have a set, take notice of the Ford document numbers on each page located in the lower right hand corner (examples - E8-8140-1 in electrical, N8-8210-1 in body, T8-8310 in interior). Don't use the Osborn assigned page numbers. Those document numbers seem to correspond to sequential assembly line "steps", and those steps bounce back and fourth between body, electrical and interior manuals (engines were assembled away from the line, and chassis stuff was - well - the exception). To add "clarity" to my discovered "quirk", the item numbers listed on each page "seem" to correspond to assembly line steps, item 1 is installed first, then item 2, etc. Hardware items use letters associated with each numbered item for assembly. This is not an absolute. It is what I noticed on certain assembly drawings from 64 thru 68 (1969 thru 1973 have a slightly different format number but "seem" to be the same.
As for me, I installed what I had in hand, and took it out when it got in the way of something else. It's called "learning by error". It's how you get experience - make a lot (yes, it is two words) of errors.
Jim