cubic inches? Its liters (think metric, remember japanese car)
The L28 is considered a "truck" engine.
IMO its stock for stock HP and reliability. There are reasons why piston rings and piston are design differently in NA and FI applications.
SR = pretty much almost everything included (inless you get screwed or other reasons). engine, tranny, harnesses, computers (engine and tranny computers), most sensors, turbo (down pipe if you're lucky). and no computer tuning really needed.
KA (turbo)= things he would need to get; KA engine/tranny (remember he doesn't have it), injectors, maf, manifold, turbo (and all thats needed for it), down pipe, harness/computer (included with engine), then he has to pay to get the computer tuned. Then he can wait for his internals to ware prematurly and have excessive blow-by down the road. then he has to replace with $$$ internals cope with the exessive ware. Oh and shipping all the individual parts.
You might have to do that with an SR also, but from what I've read, you won't have to do that inless you want to hit over 300 HP.
Not say for him to go one way or the other, just clarifying that what "may" seem to be cost effective, may not be down the road.
I'm doing a KA-T build, myself. So don't think I'm hating on the KA.