If you broke a 470 mast, you need a 470 mast. Other masts will not fit the boat or the sails, and would be a waste of money. If you're just bopping around - not racing - you might be able to fix what you have by fitting a sleeve inside or outside of the two parts, so that everything does fit, but you will not be competitive. Getting the sleeve to fit properly - especially on such a small mast- may also be expensive. If it isn't fitted properly, the mast will likely break again. I'd also try the 470 class website: 470NA.org - 470 North America - Powered by SFN
. The classified section there has an Elvstrom mast & boom for sale that was listed yesterday. Other racers may have an old mast they'd be willing to part with to a sailor in need. You may have to go get it, or have it shipped, but it's bound to be less pricey than a new mast.