If your considering doing it by yourself, then be prepared for a long job.
It is a pain due to the whole angle of the xfer box, so 2 people to get it in is best mate, i'm happy to tackle any job on the landy on my own but if i did another xfer box i would have 2 people doing it.
As james said, the Disco handbrake set up will fit but the cable will snake towards the front of the landy, then back and then forward again to your handbrake lever.
Also check the Speedo fitting, mine came with an electronic one but the one from the 1.4 version fitted straight on
Lastly, consider removing the exhaust from the middle box back as it makes life a little easier.
:EDIT:
Dont forget to remove the difflock lever pin on the transfer box, remove the centre seat, drivers seat, panels underneath and the gearbox tunnel panel as well, will make it all abit easier for you