HEADLIGHT ASSEMBLY REPLACEMENT, need some info please Options

[Ziggy]

I have a Toyota Celica 1994 ST. So I havent been able to find out how to put in the inner driver headlight assembly i got since taking the old one out was easy since it was in pieces. Would I take out the front bumper first or how do I go about this. Also since i eventually will replace the front bumper as well after the paint dries off and I lightly sand the little bubbles caused by some light rain. The current front bumper is a little caved in and the hood does not close. If after I replace the bumper, the hood still doesnt close all the way down should I just put some weather strip to fix that gap... appreciate any help since im new at all of this but I want to learn the basic before I try dropping it or any other mod. thank you in advance!!