Oh no!!! Sorry to hear that frank. That's a real bummer. It's pretty easy to pull the transmission apart, if you want to see what is broken. It will be obvious.

You mainly have three options:
1. Buy another used 5-speed, maybe a later model one like 08-up, and cross your fingers it doesn't happen again
2. Get a set of PPG gears and have your transmission rebuilt with them installed
3. Get a 6-speed

Keep us posted on what you end up finding and doing.