Having original seat back upholstery resewed, anyone have it done?

Seeing how flat and inaccurate the reproduction seat covers are I'd like to keep my original seat back upholstery when I get the seat redone. One side is splitting on the edge (thread deteriorated)and the other side needs to be resewed as well but needs a new piece of vinyl spliced in since there's a tear (the side of the seat back, not the front). The vinyl itself is great, no fading or rips anywhere else. The bottom cover was replaced once and that's already ripping again. I'll have to settle for a repro with that part but if I could keep half that'd be fine by me. Could a good upholstery shop do that? I would think so, right?