At a glance (in that photo) it looks just fine as is. Someone could easily make a trail rig/truggy/buggy out of it. Or, with significantly more money, restore it.
I am of the opinion that almost any rig can be restored as long as enough character pieces are still present. Rust, even large holes and missing structure, can be repaired. But if the original roll bar/ seats/ steering column/ original type axles/ drive train etc,etc are gone or altered it can always be a trail rig until it just won't move. Even then it can be an organ donor and complete some other build.
Its yours. Do what makes sense for you. If you've got the time let it be known locally that it's available whole or in parts and see what happens. You might rope another sucker into this stupid hobby.