200whp is very doable. I don't see that being a problem at all. If I were you, I'd looking into getting a GReddy turbo kit or the like. It will be easier than you trying to piece together a kit, and cheaper than buying a high-dollar, big number kit like Full-Race, Synapse, etc.. For the love of got though, stay AWAY from the cheap generic eBay kits. The only thing even worth the time on those kits is the intercooler piping and oil lines.
Spec, yea I'm just yanking your chain. I quickly simmed through the link. It's late, and that's just too much for me to read right now lol.
People (mostly uneducated about motors and building motors) are always saying "The B20 has the weakest sleeves of all the B-series." That is not true. People use the B20 because it's simply a 2.0L. They throw a shit load of boost at it, and then crack a sleeve. They portray it as a "sleeved 1.8L" since it's a 2.0L motor. It's the exact same construction as any of the B18 non-vtecs, again, just with a slightly bigger bore.
Since I'm at my buddy's shop about 4 day a week, I've seen a lot of builds, I've helped with some, and have even did some of my own tuning on cars. I know that the tune isn't every thing. The tune can be great, but the motor/setup still needs to act with it. We tuned a RHD EG with a turbo LS in it, the guy came 300 miles from home to have it tuned by Tom only.. This car was built, low compression, big cams, a Precision SC67 turbo, etc. I think it made some where around 460whp. The same guy came back later that night, and the car was blowing oil from every where, and smoking up a storm. It ended up being the head gasket. The damn thing was 2 week old, and the car didn't see boost until it was tuned.
I know I'm rambling on and on, but I'm just saying. Everything can be new, freshly built, right-in-spec, but there is still variables of how it can go wrong.
And in an awesome world, we'd have lots or torque and won't spin up to 90+ mph, but noooo... lol