Zee,
I will step up and state that all of the different A's that I have sailed are pretty easy to right by yourself. Are you looking at racing these boats or sailing them for pleasure? The A-Class is very competitive, fun to sail in and one of the leading innovation classes. As to the sails, I am most impressed right now with what Jay and Pease are building at Glaser Sails
http://glasersails.com/. I watched the different sail designs that they brought to the a-class mid-winters and was extremely impressed with their constant research, development and overall commitment to the class. But beyond that, they are producing extremely fast sails for the A-Class right now. I think that it will be interesting to see how sailors such as Lars Guck, the Glasers, Pete Melvin and the other top U.S. A-class sailors do at the worlds in Islamorada this November. Looks like you would like to purchase now though. If you look on the usaca.info website, you will find a great deal of information about different builders as well as some information about who is sailing which boat with their mast and sail choices. The A3 is currently one of the hot boats in the class as is the Flyer MK2. Ian & John Lindahl is also designing and building a new hull. I believe you choose your mast, beams blades and boards and he will build the hulls around those. You can try reaching him at
jlindahl_lcd@yahoo.com . Good luck with your purchase.