Defender - door repair for rust issues

Question

An improvised repair for a weathered Land Rover Defender door — a solution that deviates from the original specifications. Many owners of older Land Rover Defenders are likely acquainted with the challenge of dealing with a corroded door or, at the very least, encountering oxidation along the lower edges.

Is there a straightforward method to address this issue, even if only temporarily? Maybe there's a resourceful repair hack in the spirit of ingenuity.