Hi, dbswales, and welcome to the forum. The saying goes "try before you buy". This applies to quad line kites as well. I'm guessing that you are way north in the UK. It may be worth hopping on a train and heading south for a two-day holiday. There's a bunch of experienced pilots who fly around Dunstable Downs near London. Contact them and join in the fun. They will love to get you started and will help you make an informed purchase when you are ready to buy. Perhaps one of them has a suitable used kite that would fill your requirements. Look at the member map on this forum, as well as theRevolution Kites forum and send some PM's. If you hang around here for a bit, one or more of them will probably pop in to say hi.