Can you help the Comet Racer Project with some Pulleys?

Please see post below.

I am after stuff again. does anyone have or know where I might get some aircraft pulleys. They are the old English type AS103 and they dont seem to be available any more and there doesnt seem to be a modern size the same.
here is a pic of the listing in the LAS catalogue but they dont have any in stock and besides at over £50 each wow.