I like the look of half-furled sails too. There are, however, some problems associated with making them at such a small scale. I really don't know how I'd do it. My usual technique for furled sails (silkspan tissue, coated with a mixture of acrylic paint and white glue - here's an example: http://cs.finescale.com/fsm/modeling_subjects/f/7/p/155391/1678665.aspx#1678665 ) wouldn't look right. If a complete sail is going to be visible, it really takes some detailing - which is extremely challenging on small scales.
The other problem is that if you're going to show the sails clewed up, you really commit yourself to including all the rigging that's used for the evolution. That means buntlines, clewlines, bowlines, reef tackles, and others. That will just about double the amount of running rigging compared to what looks perfectly adequate if the model doesn't have sails.
The plastic kit manufacturers have flirted with this idea from time to time. Take a look, for instance, at Revell's good old HMS Victory: https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwi7y-vbz_vLAhXCWCYKHavyDeIQjRwIBw&url=http%3A%2F%2Fwww.modellversium.de%2Fgalerie%2F26-schiffe-ww1%2F4689-hms-victory-revell.html&psig=AFQjCNFrOxdOcCXvcG5B3Bh15dMikYpmwQ&ust=1460087290919693 .
The sails are vac-formed, and they don't look too bad. A good modeler probably could, with a little weathering, make them look quite nice and believable. From the front. But if you look at the model from behind, the sails look utterly ridiculous.
The only small-scale ship models that, to my eye, have really pulled this off are those of the late Donald McNarry, regarded by many modelers (including me) as the best modeler of the twentieth century. Here's an example of what he could do - at 1/192 scale: http://www.donaldmcnarryshipmodels.com/graphics/11-photo-large.jpg .
I make it a point never to look at a picture of a McNarry model when I've been at my workbench. He makes me want to give up.
If you do want to tackle such a project, I can recommend a good source: Seamanship in the Age of Sail, by John Harland. It contains verbal descriptions of just about everything involved in sailing ship handling, along with hundreds of illustrations - some of them contemporary, some drawn for the purpose by the fine marine artist Mark Meyers. The book was out of print for a long time, and used copies were outrageously expensive, but a new, reasonably priced edition is available now: http://www.barnesandnoble.com/w/seamanship-in-the-age-of-sail-john-harland/1121842091?ean=9780870219559 . Highly recommended to anybody even faintly interested in sailing ship history.
Good luck.
Youth, talent, hard work, and enthusiasm are no match for old age and treachery.