How do you get into a locked '74-'89?

Put a wedge between the back of the jam and the rear window, reach in with a wire and pull the door handle. 911 doors have a lot of flex room for doing this.

Interesting. I might need some grape stake wire for my door handles.

I have some fencing wire in my toolbox that I use. The paddle/flapper style on the 911's; you just hook the front edge and pull back. Having the advantage of some leverage and the fact that it's nice and accessible makes it easy.

I was just thinking that through; I locked myself out a month ago. I think the hard part will be to maintain a hook to grip the handle, and then the right angle needed to pull the handle to rotate it back.

As soon as you get the new ignition lock and keys made up and installed, it's guaranteed your original keys will turn up!

IIWY, I'd turn the house upside down first and see if the keys fall out. Check other cars, too. And the driveway. And the garage floor. Check the underwear drawer. Finding the original keys is by far the best and cheapest option. Spend the bulk of your effort on that goal and don't give up. The keys are still there; they're just waiting around for you to find them.

invite all your p-car friend over for a beer and see if any of their keys will work. so far i have one that has a key that will work with mine.

If you can survive without the car for a couple of weeks, go straight to Germany. Porsche in Germany should be able to make you a key based on the serial of the car.

Else try to take a locking part off the car (i.e. glove compartment lock, door handle or switch assembly) and take it to the locksmith. they can reverse-engineer a key based on the positions of the pins.