Christmas, your car is very cute! It's not even a car - it's just a cabin! It's hard to believe it would even have enough weight to break a timing chain. It won't drive at all if it is broken. If it is still driveable the chain isn't broken. I've never heard of a timing chain breaking, just gradually going out of sync. Maybe get a second opinion from another mechanic if you think the mechanic might be trying to rip you off.