whitelighter, like bien says, the stock engine practically lasts forever, as you can see from the various converted B series civic, H series accord, F(ob's) series DOHC accord, and etc.
It's when you modify it that reliability is compromised.
But even with a bit of abuse, and clocking 200,000kms, I've only lost compression on ONE piston with the rest reading on par with a healthy engine., which is pretty much a good idea of how hardy the engine is. I doubt that many honda engines see critical failure with minor maintainance done every now and then (it will cost a bit, but if you can buy an S2K, I think maintanance would be a non issue in terms of financial capacity, after all original honda parts are expensive, but not THAT expensive as some aftermarket JDM parts.)
Well, the ball is in your grounds, and your choice.