As Chris said,you really need to sort all the other stuff out before you put that turbo in.
I did everything first....brakes,suspension,tyres,paddle clutch,FMIC,induction,EBC,exhaust plus a good service and a good check over by a fiat specialist before I went for a stage 1 turbo and remap (290bhp)
Scrimp on the boring stuff and it will either go bang or won't be much fun driving it mate.
When I say "boring stuff",I also mean things like drop links,wishbones, rad,brake lines etc.........which also cost me a packet getting them done as well.
Get it right and you will really enjoy the experience.
Paul