Help with this cushion cased Lemania monopusher - worthy project?

I am considering taking on this Lemania branded monopusher (13CH) as a project. Hand and dial Look kosher to me, but opinions definitely invited? The pusher isn't functioning so I suspect damaged lever or missing lever spring (waiting for images). I guess trying to find a spring would be like trying to find rocking horse shite and possibly a waste of time? Not generally a fan of nickel based chrome plated watches, but this might be the exception? Worth taking it on for the right price whatever that might be?