Totally 100 % fixable and actually very easy for one who has the skills. The hardtop is easily replaced, door , window frame are also easy. As for any body deformation a few push and pulls with some good hydraulic equipment and the rear tub could be saved. I would turn it into a crawler if it was mine. I've been destroying and re building my 66 Bronco for 15 years. I have been messing with these things since before they were worth 50 k plus( 80s 90s). My first experience behind the wheel of an early Bronco was when I was 15 years old bombing the Rubicon trail all the way to Rubicon springs with my dad and uncle. I have watched the value and popularity of these skyrocket while to me mine remains a humble work horse that loves abuse and an impossible challenge. I see the Bronco as mostly a drivetrain and chassis valued vehicle. Numbers matching, show worthy perfection is one thing but most are looking for that rugged rig they can customize, run hard and not worry about value. That's why partially destroyed Broncos are worth so much as long as the drive train and chassis is good... the rest can be fixed , customized or upgraded as fits yor needs.