hey guys, im not so much of a hybrid/engine guru...so i need some help.

Im planning to get an EK and was wondering wats the best motor for swapping? I mean which motor would be:

-easiest to do
-performance
-legalizing
-handling (i heard h22 throws the EK off a bit???)
and $$$ (the other ones are more important...kinda )

Ok so which motor?

-h22
-b18c5

Im not really planning to do a lot of mods to the engine, so wat would be best (almost) stock. And anybody out there that can do this?

THANKS FOR ALL YEE HELP