there are headaches involed with doing a h series 6th gen swap... all i know is it's hard.

a h22 head swap might be good, but overall it's hell to deal with.

turbos are a very reliable way to boost power output of an engine, generally speaking if you buy a good kit you will get good results.

maybe the f20b is an easier swap than the h22, but i wouldnt bet my life on it.. plus the -.2 liters of displacement means you'll be left with less torque, although the engines high output might make up for that.