With median household income at $59,380 in Port Allen, we try to steer repair-or-replace decisions toward the option that doesn't strain a household budget running below the wider area's $81,484 median. For a door from the 1962 era, that usually means: fix the spring, fix the track, fix the opener gear - those are worth doing. Replace the whole door only when the panels themselves are failing, since a new door at this income level is a bigger decision than it would be in a higher-income part of the service area.
We don't post flat prices here because spring size, track length, and opener type all swing the number, and guessing at a figure before we've seen the door does nobody any favors. What we do instead is tell you on-site, before any work starts, which repairs are worth your money on a door this age and which ones are a stall tactic before the door needs full replacement anyway.