on the install part of things . . .
The injectors shouldn't be too bad, you could do this in your garage.
When I installed my up/dp I actually pulled the turbo, not that difficult, but most important
IMMEDIATELY after you install the turbo do a coolant flush. THis will eliminate air in the system, otherwise you will have problems, I know this from experience.
And the fuel pump, you should check if you have to drop the rear diff to get to it, I am not sure either way.
Along with whp . . . you should be around 300wph or more depending on the computer management . . . quarter mile . . . approx. 12.##, you should be running in the 12's now.
I hope that helps!!!