I’d take a look at Primeweld if you haven’t already.
https://primeweld.com/
I sold my Lincoln MIG to switch to Primeweld’s TIG225X for auto/fab work and couldn’t be happier. I was impressed with their advanced DC TIG features, name brand components (CK Torch), 3yr warranty, and free shipping to/from them if it ever did need warranty work. Top-notch company in my book.