Your boat may be a good example of why not to buy online. A sailmaker will account for displacement of your boat, local sailing conditions and give you a sail that has enough curve in the sail to develop power enough to make the boat go. An off the shelf sail may be cut for racing or a lighter displacement boat and have a more flat shape to allow the boat to point better. The only problem is that your boat won't point anyway and all it will do with a flat sail is go nowhere. You should go with a cruising dacron of medium weight cloth if you are going to be coastal cruising. Corner patches and chafe guards will be way more important than high tech sail cloth - don't waste money on that. Have you decided on a 150% (#1), 135% (#2) or 100% (#3) yet? That's something else a sailmaker can advise you about.
I respectfully disagree with several of the previous posters' opinions. If you are willing to measure your own boat, you can save $1000 if you buy a sail from a well known, online sailmaker.
I ran an “online loft” for many years, prior to taking semi-retirement this year. 99.9% of the sails we made were custom built to measure, with the measurements taken by the owner. I PERSONALLY provided consultation to every customer. I didn't go sailing with my customers nor did I hand deliver and fit them myself. And of course, I didn't charge extra for two extra half-days of my time.
I was available to answer questions by phone to customers who were fitting their new sails, even on weekends.
None of the sails were from inventory kept on the shelf, and all were custom designed by somebody with decades of experience. We never sent a sail that was cut for racing to a cruiser. Every sail was custom designed to match the customers sailing profile, and every customer got to ask as many questions as they needed before deciding which sailcloth to use - whether it was low tech entry level dacron, super high quality dacron or cruising laminates or race laminates. .
I had thousands of satisified customers over the years (and, unfortunately, three or four customers from hell who weren't happy). We delivered sails to customers all over North America. Many of our customers were repeat customers If there was a problem, we fixed it, either at a local loft or by having the owner ship the sail back to us.
I rarely delivered sails outside North America, because it is too hard to find a reputable local loft if and when something needed to be adjusted after it was delivered.
Judy B
Retired online loft owner.