2.0L 626 engines will swap over with minor modifications, they're just older FS-DE's but some don't have forged cranks so do a bit of research so you don't end up with an even weaker engine than the stocker.
Your best bet though would be to just get another engine from a 01-03 3rd gen Protege and swap over the windage tray and oil cooler. That's the only difference between the MSP and regular 2.0L Proteges, whereas the 626 FS-DE's have a few more differences that need to be addressed (crank sensor, valve cover, crank itself, coil packs, manifolds, etc.)
And you can forget about the 2.3L DISI engines from the 3/6, that's a whole different beast that would require way more effort and money than it's worth.