i don't think 3k is really necessary...
fmu- 150
fuel pump- 100
intercooler and piping- depends on how big you want it
turbo- 50-100
manifold- i've seen them as low as 100
injectors- as low as 200
you'll need to modify your exhaust, or... just go with 3" from the turbo back, no cat, that's what i have

you'll obviously need new internals for high boost, the non-maintenance stuff is just icing on the cake
did i forget anything? it's getting late for my brain...