74 Duster Headliner

I have done a frame off restoration of a '74 Duster. Question the headliner- is the back of the headliner near the rear window - tucked under the rear window seal or butt up against it? I've replaced the healiner but sticking it under the real rubber seal - really looks "unfinished". Any ideas?

The replacement headliner was from legendary and it is a hard plastic shell with a cloth cover.