Thanks. I made the shade structure myself with some things that were laying around the workshop. The sunbrella however was fabricated by a friend of mine who does canvas work.
Since I have a custom boat cover, I needed fishing shade that can go up/down easily. The take-offs coming out of the upper rod holders are just two rod holder outriggers turned backwards with a piece of SS rod through bolted. Jaw slides x 3 attached to each SS rod, then 3 aluminum bows (fwd, middle, aft) with nylon ends to attach to the jaw slides with 6 SS pins to hold in place. The only tricky part is positioning the SS rods for through bolting. The idea is to position them so that when you lock the downriggers into the upper rod holders, they are slightly sprung to the outside and need to be gently bent inward to attach pins. The sunbrella of course has three pockets sewn in for the aluminum bows to slide through. There is also a flap with velcro that wraps around the SS rods to let rain run off.
There is about $150 into the whole thing. More if you had to buy the materials new.
I will post some pics of the individual pieces if anyone is interested in making a temp shade like this....I am sure someone can improve it or make it more attractive. It is very solid and sturdy and does not move or sway even in very rough conditions or at speed.
jim