Poland will rather pay the fine
They won't pay it and they won't stop the logging in Białowieża Forest and they won't comply with any EU directives which they don't like. Kaczyński and his supporters want Poland out of the EU. They know the mechanism exists to leave but they're not going to bother going through talks etc and pay some kind of 'leaving penalty' like the UK. Balls to that is their view. No. What they will do is everything in their power to be sanctioned,effectively paralysed and banned from participation in the EU. Then they can play their favourite martyr card, 'see how we stood up to the bureaucrats and see how our poor nation has suffered by having its funding cut, our voting rights stripped' yadda, yadda.
I believe they think Poland is strong enough now to carve out a new role for itself in the world without EU membership, where Poland leads the way in demonstrating that anyone can give the EU the finger and defy directives, policies etc. They hope and probably believe that various other nations, mostly from the accession countries will then follow suit, there will a rebellion of sorts with Poland as the dominant nation in a new European alliance. I think that's their vision.
Word has it that the plans to press ahead with the Supreme Court reforms will go ahead in the Autumn and that Kaczyński may replace Her Nibs as PM in November. The army is already under the control of the party. Kaczyński has mentioned how he expects 'strong resistance' to his proposed media bill and that the universities are also in need of 'deep change' and will be next on the agenda but that he is 'prepared'. If things go on like this, one fine day we're going to wake up to martial law. Poland at present is heading towards becoming a totalitarian state.