Right now, I've seen 1k rifle or pistol primers of just about any size and brand go for as much as $200/1k.
I reload rifle and I have pet loads for each gun but any large rifle primer will work, it just messes with your load a little bit but isn't all that critical, not dangerous. I got some Federal Large Rifle Match from Dawson's last month but I'm sure they are out now. You might check with them.
Sold 18,000 mixed brands of regular and BR small and large a little while back. The buyer told me he would pay $100 per thousand and I didn't argue.