Lemania Monopusher Chronograph 13CH Cushion Case Help

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?

I've got the exact same watch, if working they are worth an absolute fortune so don't fυck it up 🤣
Some parts are extremely hard to find but they are out there.

Good luck