Looking Into Turbo

[RacerFreakXXX]

I'm trying to do my research before I even commit to going turbo. I'd rather go turbo than supercharger, just my preference. However if turbo is too much of a hassle I'll back off. Looked around and everything is a little shaddy and reading different things here and there. Here are my questions:

1.What parts of the xa/xb 1NZFE GREDDY turbo kit can be used?
2.Can E-manage plug and play work with the stock ecu for 7psi?
3.Can you use any plug and play for the yaris?
4.If plug and play can't be used, I assume AEM standalone is your only option?
5.Will anything need to be done to the motor if you are running 7psi?
6.What is the general price of everything needed for 7psi?(directed at you garm, I am assuming you have done the most research, I am looking to spend 4k roughly)

My goal is about 150whp give or take, and I'm not trying to complicate things and make some super race car. I just want a good amount more whp for daily driving. By next spring I'll have wheels, coilovers, exhaust, brakes, seats, ect. I am already expecting to spend 1k on gauges and about 6k on everything else but the turbo.