If you use the orginal mounts, gearbox, driveshafts, you will need to hack a slot out of the RHS chassis rail to clear the motor pulley & make the RHS mount fit.
Using the origional RS5F30A gearbox might be a bad thing to do from a strength & traction point of view. You would be best to use the RS5F31V gearbox. (I'd recommend sourcing a Pulsar N15 GA16DE & RS5F31V).
The RS5F31V will bolt onto the origional mounts but getting the correct length half shafts is very difficult. So you'd be looking at getting some made / welded up anyway. If it was me, I'd make some custom mounts & shafts moving the whole engine/gearbox assembly to the LHS, thus avoiding cutting the RHS chassis rail.
The GA16DE ECU shouold plug into the K11 wiring loom. You'll need an additional wire for the variable cam timing(assuming you're not fitting one of the low power GA16DE's).
If you search this forum you will find some pictures of cut chassis rails etc.
