I'm gutting the doors and I'd like to cut along this red line and plan on using lexan windows. Would the door remain structurally sound? I believe there is a door bar in it, if I were to remove that as well, would it still be rigid enough then? I just dont want the door to flex and wobble enough to come loose from the door latch.
also, assuming all is well to go ahead and cut, would you guys recommend using a Sawzall or an angle grinder with a cutoff wheel? thanks in advance! hope to tackle this by the weekend.