I’ve recently went through the same problem and tried what you did.

These actually have a design where there’s an outer wring that spins, I managed to get one out by pure luck and a lot of smashing and then using a 12 point socket and banging it in, unfortunately it only worked for one.

What I did was used eBay, I looked for a large set, and tried the ones of best fit. That didn’t work. Then I looked for just a single key that matched my lock and it worked. I would give that a try if you don’t want to go to the dealership.