UK, Ireland / LHD - buy the car in Poland or in Ireland and register it over here? [3]

I am moving to Poland in the coming months and I will need a car. I'm finding bad reviews online about purchasing a car in Poland. If I were to purchase a LHD car in Ireland and drive over would I have much difficulty registering it over there? I understand that the Poles love their paperwork...

If anyone has any suggestions on how I might purchase a car that is roadworthy and safe for approx 8,000-12,000 PLN, I'd love to hear from you.