temporary body work

I hear that the plan is to get it in for repair in a couple years but in my experience those plans can get back burner’d into perpetuity. On the bright side maybe the next time it rains in San Diego is somewhere way out in perpetuity!? Lol.
I used to drive my Dart year round in snowy (salty) Massachusetts. The tops of the front quarters rusted out and I would sand them clean on top, bend the rot upward and cut it all out. Bend the edge back down, make a patch from an old appliance and bondo the depression. Our then 30 year old cars often ran with good paint and a permanent black primer strip along the bottom. You know, for touching up later. Mine was completely rattle can primer! Anyway- I buried the inside with roofing tar. During subsequent winters I’d wash the salt when I could. That repair would last a few years without blisters in a tough environment.
Good luck