Marshall gave you good advice. The only additional suggestion/modification is to find some Rev fliers before you buy your kite. Even if you have to drive a ways, it'll be worth your time.
Rev fliers do love to share the
virus knowledge. You'll definitely get an opportunity to see what the more experienced folks are flying. And, knowing Rev fliers - and the Brits in particular - you'll most likely get a chance to fly their kites. Ask lots of questions and listen to their advice ... you'll end up with the best "local" answer.
Cheers and good luck,