cool idea :) i have some stuff too,
I have a aeron skinny extension,
88lt Mistral electron - old and heavy but still sails pretty good, comes with a fin to suit and its pretty fast! ( ive done 33kts on it

)
a few old sails nothing too flash should probably throw them out actually and save a newb the headaches haha!
Gozzo - if your mast is fiberglass and the fibers are coming out then im pretty sure you shouldnt be using it bud, chances are it will break on you at the worst time. im sure someone will have an oldish carbon mast that they will give to you,