Not really. There is a thread that deals specifically with the perrin stage 3 map already. The OP of that thread said that he ordered it and has it, why not ask him directly instead of starting a new thread if you got no responses in the other thread. Besides, there is another thread that also has to do directly with general map sharing somewhere around here. But really though, not every individual post requires a new thread.
We share maps pretty readily here when we have them anyhow. Besides, actually SELLING or BUYING a perrin map through a 3rd party would open up a whole can of worms and I think we would all like to stay clear of any complications that could arise (possibly to the forum) as a result of doing so. Trading them freely is bad enough, but at least we're not trying to make a profit off someone else's work (and piss them off even more).