03 DC rust under windshield rubber

Hey brudda’s, anybody do rust repair on windshield frame? I got pukas under rubber and leaking on passenger side. Anybody removed headliner to see if can see or get to the glass flange lip from the backside to do a good repair after removing windshield? Had truck from new, Hilo get planny rain, not selling truck, although was offered 15k, but new truck prices is nuts, my 17 Taco stock is selling for 10k more than I paid new……
Any info or pictures would be appreciated, If I was still in Maili, born and raised, wouldn’t have this problem…….Mahalo