For the top on a '33 Tudor we did; carefully removed what remained of the original tack strip material from the metal tin channel it was crimped in, then drilled out the rivets holding the tin channel to the roof, had the tin channel blasted and powder coated, fitted new plastic strip in to the tin channel with sealer, holding it to the outside of the channel as the plastic was a little narrower than the original stuff, then riveted the rebuilt tin channel/plastic tack strip assy back onto the body with sealer, and after paint, installed the top as normal.
Easier to do than explain.