probably $100 each just for the bumper cover, fender, hood and headlight. thats 400, another 100 for all the little stuff and then you have to get it painted. I'd say 500 for a real ghetto job. more if you want everyhting to line up and look right.
is you suspension okay? If your suspension is jacked I would just throw in the towel.
looks like the mounting points for the bumpercover/fender are gone so you will have figure out somehting there.