Mains run about ~$1900 USD. Jibs are ~$750 USD. Spinny...don't know, but I suspect they are competitive with GranSegel which run around $1500 USD.
Seems like Zuccoli has a pretty nice setup in Italy. They show roof-top full-scale testing of sails on a rotating rig. Also, some scale wind tunnel testing.
Would anyone hazard a guess at a price for a full set of Ullman T sails (main jib, spin)? Interesting that they were using three different mains from the same loft.