Top parts of the spinnakers will not work, as-is

I took a closer look at the top halves of the spinnakers, there's no way they will work as-is.  I'll have to re-cut every panel and make a new head as well as new clews.  Also, I'll have to sew all the cut panels together.  I might be able to cut them in a way that I'll keep half the seams and sew sets of two panels together requiring only half the sewing.

But that means I need to come up with some spinnaker pattern designs!  Arrg!  That was not the plan...