It it very labor intensive. If its a common car, replace it, if its a not common car, either learn to do it yourself or plan on writing a huge check.
Gordon Duda Rochester, Michigan. He does a nice job with dent removal and polishing to a chrome like finish. Very reasonable. No welding. I was just talking to him today he's 12 weeks out. Gordon Duda and Sons 248-709-8915
When 'picking' out a dent, crease, or 'ding', I have found that prior to working a hard, flat birch board (1" X 4" X 36") down from #s 280, 320, 360, 400, 600 sandpaper on a block, NO surface was flat (or clean) enough to work stainless trim! I have also shaped a 'furrow' for certain profiles. (my '47 Ford sedan had a flattened rear fender trim piece that required a female 'buck' to reclaim the shape) Instead of a lot of special hammers, I reshape chisels, floor-coverers' stair tools, and anything steel I can cut to reshape. Then it's 'Ding, ding, ding.' Enough to make ya dingy. I have to psyche myself up to ding stainless. Actually, down. No conversation, dogs asleep, no radio. At first, I would ding 'til I thought the surface was reached. (that was too far) I'd end up filing and dressing the surface, essentially thinning the material. I'm still no master. But damned more careful! Not done 'til it's finished, either. NO shortcuts.
It is very expensive to have professionaly done. My convertible has a lot of stainless trim, I bought the biffing wheels and compounds, and a trim hammer and anvil from Eastwood and learned how to do it myself. I would try do do it yourself