Sam,

Good luck with your project.
If you're looking for new pieces (jibtrack, ...) contact Matt.
Concerning the mast, a wing mast might in theory only add 2% performance increase, but you can trim the boat a lot better towards more or less wind, making the boat a lot easier to sail and in the end a lot faster. Not only wingmast or not, but the stiffness of the mast is important. I would reconsider this part.

Gill