It's a classic.. Looks like it ripped apart at the shroud fitting? Hope you either fill in with the story here, or make a new thread, even if you said you would not.

As long as you are not going to compete with the boat, any alu-mast squaretop will do, but beware of the loads. If you want max. performance, you need the luff curve adapted to your masts bending properties. The pros went with carbon masts during 2004/2005 so good used squareheads for alu masts are becoming more rare. Check on tornado.org and on the yahoo Tornado group. Good classic jibs are even more rare than alu squareheads. I would consider upgrading to the selftacking jib. Putting the new style working sails on the boat do wonders for it's handling, especially tacking. I would consider the boats structural integrity before putting a spi on it. If you can track down the brand, post a question on the TornadoCat yahoo group and there are good odds for quality answers.