Assuming the wind was 90* from your stern, I'd bare off 5-15* near the southern mark, douse, round/tack, and then set again. Drop the pole early, make sure the crew is sailing the boat with what it has. I'd also find a way to keep everything attached to speed up the hoist on the new tack. Maybe drop the chute on deck, tack, and pull the sheet back while hoisting. A windward set if you will. The breeze should blow the kite around with 'help' from the new sheet.
Get it flying, then set the pole, and douse the jib.
Seems like this would be very unlikely for the wind to stay 90* to the beam. Keep an eye on shifts and you'll have to change your strategy at the drop of a hat. I don't believe a sym kite is very efficient that close to the wind anyhow.
Merit 25 # 764 "Audrey"