Turbo Part Sourcing

[DieselScout]

I'm currently trying to build a D24T to put into my 240.
To my understanding the turbo on the D24 is a Garret T3?

Picked up a turbo with a seized block. Turbo is covered in oil and rust.
Any recommendations on how to remove these screws/studs? They seem more problematic than usual...

I've removed most, but several seem to be seized in place, especially the four on the back (which I think is a waste gate valve cover?) I've tried a MAP torch and penetrating oil with no luck. Due to the rust/corrosion, the screw heads all seem to be slightly different sizes.

What parts should I anticipate replacing?
I would like to replace the gaskets at minimum.

What keywords should I use to look for parts and what suppliers/venders are recommended?

I've found some parts on MercedesSource, but not sure if they are compatible: https://mercedessource.com/store/sea...s=Garrett%20T3