I have no experience (aside getting a quote) with Lee Sails. Your quote was $150 less than what I got for a smaller (43ft luff) sail with two reefs
(7.3 oz cloth) but then things tend to be slightly higher in Canada
and you are closer to Hong Kong
would be less.
Our local Lee Sails representative does not have a loft which is one reason I didn't go with him even though he had the best price
. It was important for me to have a place where I could take my sail if it needed adjustments or repairs
so I decided to go to a local loft who actually makes the sail at their location. I ended up paying almost a third more but I think it is worth it (I also got a heavier sail cloth so it isn't really a far comparison).
BTW, my loft quoted $1100 for the Strong Track (43ft). The Dutchman system is $800 which seems high for what you are getting (how much is convenience worth?).
The following chart lists the variety of sailclothes offered in the challenge line: http://www.challengesailcloth.com/applic.htm