They are all money pits, this one looks like a money ‘black hole’. Having said that, it might be hiding a gem....might take some finding though. Still, it’s on ‘offer’ and at the right money it could be of use in some way, some how. Better to be out there than not?
If it was round the corner I’d take a look. Many years ago a went to look at a right BOS described as a neglected 650 BSA. Turned out to be a rocket goldie with 2xK2FC mags and 3x long dynamos, not to mention rare thick flange barrels and other stuff. No bad for £65!!