Wow, thanks for all of the help and information! This is the kit I had ordered a couple years ago when I did the head exchange on this car:
KKK K24 Turbo Rebuild Repair Kit Mercedes Peugeot Alfa | eBay. I saw some early signs of turbo seal leaking back then, but it wasn't nearly as bad as now...I needed the car so I put the turbo back on. Now the leak is much worse and I will need to do something with it soon.
I know I took some pictures back then of the housing and some numbers on it...I'll see if I can find that. If not, I might be able to sneak in with a mirror and find the numbers. It would make sense that the kit was incorrect if there were 3 different models on this car.