Just to let you know, if you can't find 7mm WSM brass, it is easy to fire form the 300 WSM brass to work. I had to do this last time I bought brass. It actually worked out great. If you want any more info send me a pm.
How much are you looking for? I have one bag of new Winchester brass 7wsm of 50 rounds and some used brass. I am not looking to part with lots of it as I have a 7wsm, but I know the frustration of needing something in todays market and not being able to get it.
Let me know what you need and I am sure I can help you out.