Thanks guys!
I didn't have enough time to do change the oil pan and the local dealer didn't have one instock. I found a temporary solution. Kragen sells a rubber plug that is 1.27 mm in diameter. I bought it and after some sanding, it fits in the drain hole. There is no leak thus far, after 3 days!
My next move will be to remove the oil pan and use a self tapping nut with a smaller piggy-back nut on the pan. I want to have the pan removed so I can apply threading compound to the self-tapping nut with the pan cleaned. The oil will drain slower, but an extra 10 minutes of drain time isn't going to kill me.

What would be really cool is to find a tap size 14mm 1.50 pitch to tap for a new plug, but so far no one sell such a tap!
If that doesn't work, replacing the oil pan comes next. I think I'd have to drop the front exhaust pipe for easier access, but if I have one of those bendable rachet extension, I might not have to drop the front exhaust pipe. Maybe???
You guys rock! Thanks a lot!