Ibiza – 6K or 6L?

Hello, I’m just looking for a car. Probably it will be a Seat Ibiza with a 1.2 liter machine. (60 or 64 HP). Since I get for the price (up to approx. 280€) both the 6K, as well as the 6L I wanted to ask you which you would advise me. The 6K would then have run less at the same price. Besides, I have read more often on the internet that the 6L would have significantly more “weaknesses” than the 6K. Is there anything there? And it would be great if I still had a few D Inge could list which one should consider when buying an Ibiza with this machine. Friendly greetings