For me it would have been a shame to soon start forgetting about the wonderful amateur methods.
Having some sqm of fabric (Swela Outgaard 190) and webbing (25 mm PES) left over, I took to the still smoking sewing machine and created a yellow umbrella as a sun shield. The shape I derived with CAD to get it work without any wrinkles, used amateur method B to sew on "batten pockets" and put in some 25mm grp tubes, connected by alu tubes (like tent poles, but heavy duty). All around the corners I sewed on the 25 mm webbing.
The four sided sunshield is 2x3 m, carries at the cross point of the battens. I attach a spare halyard there, lift it, and attach 4 diagonal lines all around the cockpit. That makes it very easy to adjust height and angle according to the sun. Works like a charme, and did cost me nothing.