SR20VET CVT Problem...

Imported a Nissan X-Trail GT Autech Stage 2 edition with the SR20VET a few months back. Got a front mount intercooler, 3" exhaust from turbo back, wound boost up to 18psi(250Kw@wheels!!) and TEIN coil-overs.

Had trouble free motoring since but now the CVT transmission is playing up and am trying to source another transmission or possibly rebuild the current one.

Does anyone have an idea if the internals of the SR20VET AWD CVT is the same a the X-Trail QR series AWD CVT??

Alternatively, if anyone has bought a X-Trail GT front cut for the motor, how much would you want for the CVT??

Anyone know whether the 350Z Brembo 4-pot front calipers could replace the calipers on my X-Trail?

Thanks in advance,