Adding to this thread as i am getting ready to blast, paint and re-skin my doors. i have the specter replacement outer weatherstrip and window felt (although the felt is literally just flat felt material and would probably be cheaper at a craft store). plan on 1-1.5 hours per door to chip out the old outer rubber seal
if measurements are the same as newer (67 ish) soft doors, the plexi is .125 (1/8) which cruisernerd said he used, but there is another post with conflicting info...i'll let you know what i find out with that. i don't have the lower channel for the window, so i'll have to make something there, i'll do that when i get the plexiglass.
in the meantime, i have the doors completely broken down and ready to blast. some helpful tips.
after getting the outer rubber w/s off, use a good j.i.s. screwdriver in what we would call a #2 and a hammer and tap it a few times into each screw. this is the third set of oem soft doors i've torn down (other two sets were later model) and i've gotten almost every screw out. they are stupid tiny, so be prepared to lose some
i also used #6 ss screws, but in 1/4" length on the last two doors and will supplement here. there are 7 across the top, 12 down the angle, 14 on the bottom and 7 on the backside, so 36 per door. the #6 screws are larger as mentioned, but if you push hard, they will go in. take note of which holes actually mate up to a hole...i had extra hole in the track when there wasn't holes in the door.
the window frame is bolted with nuts everywhere except the two top forward screws.