Mast graveyard?!

Your best bet is to put a post on the Cherub mailing list, cos I'm sure theres a load of peeps out there with old alloy masts, designed for Chubs.

As for the Yellow boat with the 800 mast, was it at Draycote? Sounds like Iain in Suicide Blone. (V.Sexy boat)

Obviously the stiffness of the mast is directly related
to the power and gust responce you get and then
how easy or hard the boat is to sail.

My first Cherub was Flying Trifle and she had been
set up for some heavy weights (25 / 26 stone ) so
she had a M7 mast. And I can tell you that it was a
knightmare of a boat to sail as a lightweight.

So try and choose a stick that is the right stiffness
qualities for your crew weight. This will always be a
compromise if you are looking around in the Grave
yard. But get the best you can and then consider
making a Carbon one to suit your needs better.

It isn't to difficult a task and there is lots of help
avaliable from the class tech guys and others as
well as a DVD and mpegs that show the process.

You can then sell the old boat with the old rig and put
the new one towards the next boat.

If anything go lighter rather than heavyer as you can
always support the mast more if you need more
power. With caps / D2's / and lowers.

If it is not to badly bent i.e. there are no obvious kinks then you can always straighten it.

If not and you need to use another one then the best plan would be to look for one from a boat with a simelar sized rig and then convert to suit with simelar bendyness.

420 might be a bit short, fireball, 470 possably RS400,

Laser 4000 and Iso would probably be stiff and heavy

You then need to fix what ever caused the previous owner to scrap it and convert to suit.

To move fittings around you just need a drill and some small files and time. to attach trap wires you can use proper T terminals with backing plates or just drill a hole each side of the mast and put a ss hook through to tie you trapizes to.

provided you are not going for a masthead kite then you do not need any extra support. If you are going masthead which would only be a feasable with 97 or 2005 rules size then you need an extra set of spreaders and cap shrouds going up to the tip of the mast.