Get a chipped ECU and yeah the boost is at your limit so to speak (steady mind)

Hmmmm ive seen people run a LOT more than 12psi through a standard one lol, yeah should be ok, obviously longterm you want to really uprate it.

Well clutch wise get whatever you think you will need, uprated clutches handle more power but like everything the downside being they wear a bit quicker, and if your going for a mad paddle clutch they are a bit less forgiving. 12psi aint a lot a standard clutch should cope but you could always go for a high grip one.

If your doing the clutch you could get your flywheel lightened and balanced or even better get an EFI flywheel and have that modded, then should you ever decide to go down the EFI route you've already got that in there!

Yeah so u should be a Genuine RS with a full history should see a bit more wedge than that!