[Ovencleaner]

Well, I just got a raise and I am making some extra money and want to rebuild my D series engine for about 15 psi of boost. I have a few questions.

Here is what I have planned:

Forged Pistons
Rods
O-ring the cylinder Head
Crankshaft
A stage 3 Turbo Kit (I am a newb to this stuff, so I thought the Kit would be worth my money for no hassle)
Exhaust

Now to the questions:

What are some good brand parts I can count on for each part?

Will replacing these parts in my engine give me more horsepower even without a turbo?

If I get a mechanic to put all the parts in, about what range should I be looking to pay?

Are these parts that generally wear out with mileage? My D16 has 110,000 miles on it, so if this could make it last longer, that would be great.

What is a good brand ECU, and how much does a good tune cost?

Is there someway to get good airflow through the exhaust and not sound ricy?

Sorry if any of these questions are dumb :|, I am new to this stuff. I originally wanted to put an h22a in, but I got a raise at work, and decided to stay with this engine.