Well THAT sucks. If you have comprehensive insurance it should cover it. Check your policy though.
Looks like you're going to need at minimum a RH fender (unless you have a great body guy), RH headlight bezel (headlights/buckets/springs appear to be ok), hood, grilles, ornament, header panel. MAYBE an upper bumper cover, but it could be saved, depending on unseen damages. Looks like a couple of bolt holes got ripped but can be salvaged perhaps. It also appears you may be able to save the hood center strip.
Unseen damages could be a center header support, the lower bumper and air dam piece?? (maybe-can't tell) and perhaps a radiator support and RH inner fender support and possibly an upper RH header to rad support bracket. Oh, and perhaps a main bumper shock absorber. You won't be able to tell all the damage until you get it apart (or your body shop does).
Here's a tip for you. Your hood was specially NOT hole-punched under the hood scoop area for the center molding, that's why it has its own part number. You CAN use a normal G47 hood, but ensure the center trim punchout hole under the scoop gets filled in before mounting the scoop if you don't get a genuine
H/O hood.
They USED to make an aftermarket header panel, but not sure if they still do. There's some used ones on ebay, but depends on their condition as to price. Around 150 bucks or so from what I've seen. Anything from 81-86 2-door supreme body style will work
If you think the hood ornament is pricey, wait until you try and find 84
H/O only grilles. You can save quite a bit of money painting the inserts of a regular 84 Cutlass black. Won't be 100% correct, but it'll work.
Good luck with it.
As mentioned, talk to 88hurstolds about the parts you need. If he can't get you a hood ornament, let me know. I think I have a used header emblem around here somewhere. It's got a small crack in the red plastic area, but the chrome is nice and I can let it go very reasonably. If you want NOS, I have a couple of those, too.