Where are you located? The USA? If so, for buying a new boat, parts, prices, warranties etc. you should contact Vectorworks Sail at:
http://www.vectorworkssail.com/contact.htmlSails are supplied by several sailmakers, this is a formula class, so you can get pretty much what you want there within the max measurements. If you sail in an area with dominantly strong winds, you should talk with your sailmaker of choice and ask for second opinions here. You would need to say something about where you sail, the dominant conditions sea/wind and your ambitions. In the US, Glaser sails have done some good work:
http://glasersails.com/Your combined weight sounds like a good match to the boat for me.