I'm wondering why it's not done very often.
You take a Vibe that is…. say 12 or more years old, with xxx,xxx miles on it, and not too many people are willing to spend over $6,000.00 for parts, plus all the time and labor, to add a turbo. To take a Vibe that has a resale book value of 4 to 8 thousand dollars and then spend another 6 thousand on it does not make sense. The insurance company, if the car has full coverage on it, will only pay out what the book value is on the car if it is totaled out in an accident. You just lost all your labor, time, and money for the turbo. I have had this happen to me when I was young and had more time than money to spend on a car. Someone runs into to you when you are stopped and all that labor and new parts are gone. The car is only insured for book value unless you buy and pay for special insurance.
Adding to the power output of the engine is not just harder on the engine, it is harder on the clutch, transmission, drive-line, suspension, and tires. You can plan on replacing these parts a lot sooner than normal, the CV joints and wheel bearing too. The car was not designed or engineered to handle high power outputs.
You did read through that first link I posted. Read the whole thing. The prices are for parts and not the labor. That guy did a very nice job of his install.