GEG,
A little cheaper/quicker way around this if nobody has an extra set floating around...... (sorry mine are not for sale)
Buy a set of Redding Type S bushing dies for 300 Weatherby and get the appropriate bushing size for your neck diameter. Then you will have a std neck sizer only for a wildcat caliber.
You can do all of the shoulder bumping and body sizing with your FL die and neck size only with this die.
I bought a set right from redding. There a class D die, but ask your local gun shop and they can get em. They're listed in Sinclairs catalog. Don't forget to get a 7mm/300 FL die so you can stop down or you'll smash most of the cases. Mine arent for sale either as I still have the gun. I don't have the 7/300 die but I borrow one from a friend.