CIDR's are easy any farm store or places like PBS animal health.
At the present time not much available in PMSG other than PG 600 which will give crap results.
There was a thing on the forum about PMSG but it might be hard to get because they would only give it out for I think it was education. Which might mean not to users of it on deer farms. I would think by now someone has tried to get it from them so check the forum on folligon.