What's a good swap-in for the N12?

I've got an 08 Clubman that's absolutely nice in all respects... except for the damn powerplant. I'm so done with this motor - you'd think at less than 150k the rings wouldn't need to be replaced, the bloody head wouldn't crack when the belt popped on the freeway because the cheap plastic bracket holding up the AC vacuum return line failed, causing AC lube to grease the belt, half the damn bolt holes have helicoils in them and yes I do have a good and accurate torque wrench... etc. I could seriously go on at length. So anyway, before I go replacing the head that's cracked somewhere invisible only to find out which is the next thing that's going to go turdbuckets on me... what's a good motor to swap in its place? If it's a Mini motor, great but I'm thinking the N series is not it. I know people like to do Honda swaps but I had the feeling that was just classic minis. Seriously, it's a lovely car but I need it to also be a reliable car and this motor stands directly athwart that goal. So what's a better option?