WARNING: 32 S&W long sizing dies have inside diameters that are all over the map! This is because chambers and bores vary to the extreme. Bores can run anywhere between .308" to .314". Chambers vary accordingly.
For a cartridge of such small caliber and case capacity, this is a huge problem.
Make sure you measure your bore/groove diameter and chamber throats (assuming you're reloading for a revolver and not a match pistol like the Walther GSP-C). A chamber cast would be a good idea, too!
There's a very good chance that once you get a carbide die, it will still need to be diamond lapped to get it tuned right for your firearm.
PS: I'm sure Redding, Lee, and RCBS sell these dies separately. But, it may be a special order.
Best wishes for your success!!