I seriously doubt they will be able to salvage much, if anything, out of that.
Flyable no, not worth while. Although there were the Israeli F16's that got flooded, they flew again. But worthwhile as a groundcrew training etc. You can get the systems working, you just wouldnt be able to rely on them. Also Battle damage repair would be happy to get a real modern airframe to make some instructional video's on.
Having said that - if we are at $100M for a replacement, if it costs $50M to repair, and takes 4 years, you are still $50M ahead......complete stripdown, new engine, new avionics, dunk it in fresh water for a week etc. Given the photo, its pretty complete, doable.....