2 door hardtop door glass installation

Before you ask, yes I have a FSM for this 1970 Dodge Dart and have reviewed it carefully. The last time I did this was in 2000. I am reassembling the doors after fresh paint. I finally have the glass run seal that attaches to the front edge of the glass on the way (pray that rumors of poor fit do not pan out). This process is always problematic because the vent window assembly with the door glass installed in the channel has to go in as a single unit. I am trying to remember if it is better to install the door to window seals along the beltline first and then squeeze the glass assembly into a narrower slot, or install the glass assembly and then squeeze the seals in afterward.\
Any other ease of assembly tips would be more than welcome.

I always put in the glass/vent assembly first, then the cat whiskers.

I did the following

1. Once regulator is installed you can remove the down stop and roll the glass down below where the cart wiskers go.
2. Install the cat wiskers.
3. Reset the down stop