ALL the mechanicals will fit, even the box will go straight in, even auto boxes fit and they are much bigger.
The hardest bit will be the interior, ie lack of TILT on the seats, trim bits won't fit, but xr4i bits do.
The exhaust WILL go straight on, just a SLIGHT difference in length, I cut and shut a ROVER SD1 STAINLESS STEEL exhaust system complete to fit into my dads xr4i, and they are VASTLY different so is doable.
The tunnel also took his R380(rover) gearbox, which is quite a bit bigger than a T5.
You wil also need the sterring rack as is 2.4 turns lock to lock, and power.
The trans mount will bolt right up as well, sapphs were made using BOTH mount points(2wd/4wd), but three door wil have same mount point as your one(2wd), only difference was the mount for box was steel on the 3 door(cossie) and alloy on the 2wd sapp cos.
You will have to fiddle about with a return line as the 1.6 one will not be adequate.
I would also be amazed if your whole loom did not go straight in, with just a few tiny connector mods needed.
tabetha