Dirk,

Of course I can fix a DXF with a crosscut layout instead, no problem. But if you are going to make a sail from it, I would like to have a look at the luff once more, as I suspect that the percentwise length of the forestay/compression strut is different between the Tornado and the F-16's.

Sailcut can output a manual cutsheet. That is some sheets with X-Y coordinates that describes the different outlines of the panels. Connect the points with a fair line (using a batten), and you get the line you cut to. It's fairly straight forward once you get to it. Build a table of 1.5m by 3m and make a large carpenters square with the vertical edge longer than the width of your cloth. Tape a measurement tape to the vertical edge, and another tape along the bottom edge of the table, and you can relatively fast plot crosscut panels.

A sailmaker should be able to build you some decent sails without much help
Seriously, with the cutsheets he can not do too large mistakes. If he is more enterprising, he just need some pointers to the luff curve and depth (-1.1% at 70% up, 10% depth at 34% was what I used), the rest is relatively straight forward if supplied with measurements of the basic geometry. With that information, he should be able to build a sail using his regular lofting technique.