No problem. Some people over there did a couple group buys a while back. I'm not sure if there is another being planned.
Nope, all done some time ago.
Usual suspects are Atlantic, Classic, Centerfire, J&G. Google around.
Unless you absolootly must have a Polski, consider getting a Yugo M70AB2 U/F from J&G - they are awesome. That was several days ago - they may be gone by now.