Found one on eBay for ya bro, but it looks pretty rough, may still work good and it may just need cleaning Nova Latch
one thing you could do is visit their store and shoot them an e-mail. They claim to have all kinds of Nova parts for all years. One thing I would check is the Nader pin or post that is on the inside of the quarter panel. It has a little collar around it and sometimes it gets worn out and causes the claws of the latch to hang up. These post are interchangeable through several years.