Half assed you say? Why not crimp a lip onto the edge of a piece of aluminum flashing, then use a good adhesive to glue it on? Thin enough to bend to the original contours of the surrounding metal, strong enough not to wind deform, can place a couple rivets inside the door jamb for added security, and will very quick and easy fix. Just a little glazing/spot putty at the edge to blend to original quarter.Send is definitely the approach when the season is underway. My intent is something just half-assed enough to get me by until winter when I can perform a slightly less halfassed repair that at least makes it look halfway straight. Likely will involve rattle can base/clear from a real paint shop and the clear would be the 2 part type.