Windshield gasket replacment

OK here is what is happening.. I just checked the leak
I comes from the top of the front windshield then leaks into the
cardboard headliner. It also runs down the from there inside where the
kick panel curves around the body...
Not leaking at the door weatherstripping..
Does anyone make a kick to change the cardboard to a cloth headliner?
guess the gasket can be cut to get the window out, then remove the rest of
the gasket and clean the channel...
thanks again