Chomp,
Gotta disagree with Mark on one point. A beefy sewing machine is a nice-to-have, not a necessity. We are just finishing a sail from a Sailrite kit. Mama's Kenmore (circa 1980) did the whole thing just fine. Up to 10 layers of sail cloth. The key is metal gizzards. If you did want to make your own sail, you can but it takes a professional kit and lots of patience. But, I'd say all you need is an $8 roll of sail repair tape.
Gotta disagree with Mark on one point. A beefy sewing machine is a nice-to-have, not a necessity. We are just finishing a sail from a Sailrite kit. Mama's Kenmore (circa 1980) did the whole thing just fine. Up to 10 layers of sail cloth. The key is metal gizzards. If you did want to make your own sail, you can but it takes a professional kit and lots of patience. But, I'd say all you need is an $8 roll of sail repair tape.