If the OEM bezel has any damage at all to be repaired , the restore can cost more than the reproduction. If the upper brim is wavy, doesn't align to the dash pad, that doesn't change. They don't correct what they don't see and they certainly don't put a straight edge to it.
As for laying the car up, We have driven a 67 B'cuda without an inst' panel for a time. Only about 6 weeks but was our daily driver.