...I’ve gone to new local shops with the intent of establishing an ongoing relationship, only to have them feed me a bunch of BS, tell me I need this or that, replace expensive parts only to have the issue remain or been charged for a part only to find out at a later date no such part was replaced.
These shops have a ton of old worn and broken parts laying around they can send you a photo of, it just might not have come out of your rig.
FYI - that kind of turbo damage is not unusual, and is caused by dust/silica blow-by from using an oiled air filter (or a poor fitting cheap paper filter). Make sure you switch back to an OEM equivalent filter before swapping turbos. Oiled filters are fine on a naturally aspirated engine, but they have less benefit on a turbo motor, and often do cause turbo vane erosion.