Just about all the die makers offer 32-40 WCF dies. Winchester has recently made a run of 32-40 brass, but most of mine has been made from 38-55 brass. Just use Imperial Sizing Wax or something similar and run the 38-55 through the 32-40 sizing die.
You can find load data in some of the current powder manufacturer manuels (i.e. Accurate Arms), or in older books, but the best source is probably the various web based reloading sites.
P.S. If light loads are used, it should be possible to load 32-40 by neck sizing only with a 32 Win. Special die set.