I wouldn't worry about values when you do a transplant. Expect to lose your shirt no matter what you put in there. Originality will always sell better with these cars.
The KIA engine is supposedly a joint venture with Mitsubishi and Chrysler if you're worried about image.
Kia's 2.0L GDI Turbo Engine Specs | eHow.com
The bottom line is that if you are willing to go to a different 4 than the original engine, this engine has got to be one of the cheapest per HP, should be some good options for tuning, and they are sold with a 10 year/100mile warranty, so they can't be all that bad.