It has rained for about 10 days out of the last 15 or so.
Retro has leaks, and I am not in a position to look for them from the inside, so I have covered him up with a couple of 17' X 19' tarps. I bought the 40 pack of bungee cords at Harbor Frieght and the tarps are pretty secure.
The tarps intersection is in line with Retro's door, so I could still get in and work.
Now that the rains have stopped, I have pulled the tarps off and Retro has regained some of his dignity.