Need advice on 7mm WSM dies

I want to FL size and load some once-fired 7mm WSM brass, but don't want to buy dies(unless they are very cheap). Has anybody come up with a way to size these with some die or combination of dies that I might already have? I decided to look for advice first before I started floundering through my stash.

$25 bucks, complete die set (I use this set in an RCBS Rockchucker Supreme and they work great!):

http://www.natchezss.com/product.cfm...rodID=LEE90573

for full lenght sizing you about have to buy the proper die. With the short mags even the universal type neck sizing dies like the hornadys dont work. the case is to short and the bodys to fat. A guy might be able to grind down a 300 ulta sizing die to use as a neck die but im not sure that even that would work.