Although I had a lot of fun with my old 17m2 Slingshot 2004 kite, now the time has come to say goodbye, strip it, and use it as wingsurface. So bye bye kite, welcome wings!
Allongside this kite, I also started collecting other useful materials:
Secondhand Carbon Fiber windsurf masttops
seatbelts from a junkyard, strong stuff
Backpack with aluminum frame
Aluminum foam laminate. Very strong, lightweight stuff.