theres no real off the shelf kit available
any intercooler will fit with modifications
pipes will need to be fabricated as to how you want to run them
I have photos if your interested of how I ran mine
Nissan R33 GtR ones are nearly the perfect size to fit behind the bumperbar - 600 x 300 X 75 is a good size!
handy hint number 2:
you MAY have clearance issues with the stock Gt4 front bumperbar ..
See if you can track down a Group A one or get yours modified to open up the mouth
handy hint number 3:
Start saving - Cause making your own isnt goign to be cheap! Piping is a prick to get around the bits in the engine bay !