Hi Dave and welcome to Mayhem. I am currently building a Legend kit (MIss Severn), albeit very slowly and rather sporadically. Yes, you have to buy direct from the US and pay a fair whack of postage. However, they are high quality kits. The parts fit together well, the instructions are well written and detailed and the fittings are nicely done. As with most kits, there are a few spots where some fettling is needed but overall I would recommend Legend Model Boats. It is a big investment for a first kit, but if you are reasonably confident and take it slowly there is nothing that demands superhuman powers. It might be worth contacting Rich Kohl (who is Legend Model Boats) and asking him which of his kits he thinks best suited to a first build.
Good luck and have fun.
Greg