That is my all time favorite arcade game.
If you hurt that cabinet in any way, I swear I will hunt you down and kill you.
But seriously, I hope you don't plan to MAME it.
I've seen restored 25" Smash TV machines sell for $1000
Restore it or sell it to someone who will. There are lots of generic "street fighter 2" type cabinets out there just dying to be MAMEd.