Thanks for your help guys...driver's door done, passenger door to do tonight and for anyone assembling B body door innards, this works for me:
Take the felt window seals out of the door.
Make sure the cap head bolt accessible through the little hole next to the remote mirror control is loosened off.
Make sure the vent frame lower bracket is in place inside the door next to the top door hinge.
Put the vent frame and front window runner in a vice.
Slip in the new plastic run channel.
Clip the plastic guides into the front edge of the window glass.
Like Alex says, fiddle the guides and glass into the channel (you may have to use a bit of force).
Put the glass and frame as an assembley into the door and while the glass is right down inside the door, fit the door window felt seals.
When fitting the frame, make sure the bolt at the bottom of the front window channel goes into the bracket at the bottom of the inside of the door and nip up all the bolts, including the cap head screw, so you can adjust it later for fit.
Push the glass up with our hand and fiddle in the rear window channel and bolt up.
With the glass up, slide the window regulator through the access hole at the front of the door (grease it all up first).
Adjust the frame, tighten up all the bolts, slap on the door card and the handles.
Go to the Nats for a top weekend!
