Thanks for the advice, Bill. I'd intended to a practice sail just to learn the techniques and work out the "fiddly bits" before committing to the real thing. I'm also a novice to the sewing machine, but I can always enlist my wife if my seams aren't straight enough!
My pleasure! You'll find that the main stitch ....a 3-step zig-zag which I use for 98% 0f the kite ...is very forgiving. The only places I use a straight stitch are the US rub patch, center 'T' reinforcement patch, TE reinforcement patch around the stand-0ffs, and sewing on the nose of the kite!
Good luck and have fun!