regarding the slight mis-alignment of the bumper. i can not predict how it can be fixed, because the pictures were in-sufficient. but i strongly urge you to run away from non-regulation fixes. you know, yung mga lalapit na magpiprisintang aayusin siya sa pamamagitan ng mahiwagang screws niya. i tried them before. "they don't work very well under ordinary use." as much as possible, use factory spec. ngayon, kung may taingang naputol, ay... tough luck! you can ask around for a professional who can install mounting tabs from the inside... it's cheaper than replacing the bumper.
lights. check the bulbs for filament breaks, using an ohmmeter and not just one's eyes. also, check, clean, or replace the bulb sockets. they may have already corroded beyond repair because of water seepage.
when i had my headlights replaced (found a seller in olx; RHD models siya, so i stuck some opaque tape on 'em afterward, to reduce glare), the entire procedure took an hour or so. ok lang sakin naman, dahil nasa burger king ako all that time.
good luck, po.