Last step that I'll be finishing up this week: I have a curving shield on the down tube in front of the legs which pulls up to the side panels. I have to cut it off though at the top of the water bottle bracket or else I'll be scraping my toes on it. That works pretty well to keep the lower legs dry and deflects most of the spray below.

Well, there's one other thing that I might add. I can bend a rectangular piece of acrylic to make a swept-back extension above the wind screen which seemed to be effective last year.