Total sympathy for the OP. Various viable solutions offered - my only recommendation is to press on, don't settle.

I've noticed some uneven finishes on stainless guns but have never had any serious problems. Yes, using Flitz, and gently using gray and white (never green) Scotch-Bright pads, you can bring a finish around to looking "tumbled" and being even all over. But it is a lot of work, and shouldn't be needed. For the record, I do not like a smooth/shiny stainless gun (as happens if you use a lot of Flitz or, heaven forbid, a buffing wheel) and I think that shiny finish detracts from the value of the gun.

Nothing wrong with a Ruger! My old GP-100 SS was about as honest and work-like a gun as you ever did see. Accurate, too.

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S&W Rover