Eric,
The air to air intercooler for a RX1 and for an Apex/Attak are different, as is the front charge tube from the tunnel snow cooler to the air to air intercooler.
The Rx1 is carb's so that kit will also not include a fuel controller for the fuel injection.
The only thing you could use is the turbo, turbo mounting plate, maybe the exhaust Y pipe to turbo, and the oiling system.