When I'm not on my phone I'll give a better answer, I've personally done the brembo swap and am working on the rear disk swap and know what's needed.
---------- Post added at 02:17 AM ---------- Previous post was at 12:39 AM ----------
Depending on what wheels you want to run I'd now recommend you get the ZZP brake kit, you'll get Brembo calipers and larger rotors although the minimum wheel size is now 18'' instead of the 17'' I run for the winter.
I started at 4x100, steel wheels and stock brakes lowered on YYZ V.3 springs, Koni shocks/struts and a Powell hardcore rear swaybar. Also the stock base body and an awful looking exhaust tip but nice sounding exhaust.
When a wheel bearing started to go bad at 54k miles I made the decision to buy the 5 lug wheel bearings and bought a set of Ion Redline wheels.
Decided since I had to switch the brakes to skip past the LSJ brakes and to buy the Brembo conversion kit from CED as well as color matched mirror caps and a set of 5 mm spacers (needed to have the clearance for the brembo calipers to wheels). Then lug nuts, wheel bearings and drum brakes and shoes with the 5 lug pattern for the back from rockauto.
Painted the drums black so their not too noticeable either.
Later picked up a SS body kit as well as SS seats and full interior power conversion with all black interior panels (power conversion not yet complete), still need to drill and put on SS sides. Have a set of SS/TC wheels as well as PF01's, the IRL wheels are not stripped and polished serving winter duty. Exhaust doesn't look too bad now.
To finish the rear I now have powell's brackets to mount the disk calipers (using SS/TC rear calipers and disks) need to buy some different hardline or make my own and need a new ebrake cable.
Also working on a turbo kit that I have all the big components for (EFR 6758, Treadstone TR12 intercooler, TTR intake manifold, Werks EFR turbo exhaust manifold, hallman pro manual boost controler, MPX catch can and Treadstone intake) but still need about $1k in parts to complete it (mainly gauges).