Did this two nights ago on my 4x4 saph which incidentally is the same as escos. Pretty much as Dojj said apart from labelling the pipes, it shuld be obvious which one goes where, and the pipes that go into the rack are different sizes so can't physically fit the other way round.
Once you get the car jacked up and at a good place to start it can be done pretty quick, fluid is a messy affair though, but epends how careful you want to be.
Also, if you replace the rack i'd replace the track rod ends aswell for the cost of it, so to save time i'd just hacksaw through them instead of fucking around with mole grips and the nyloc nut.
Also when you disconnect the steering couopling do it from the bulkhead side, not at the rack, you'll never manage that, I bet you any money.