I had a litre of ps fluid, and a 4l bottle of coolant on standby, you dont need to drop all of your coolant, just enough that it wont piss out of the passenger side outlets all over your engine bay when you change that radiator hose over, you can always recycle the captured fluid anyway.
Also, when dropping your coolant, instead of removing one of the hoses like the instructions state, there is a small drain plug on the bottom corner of the radiator (pass side), just pop the drain and you can easily catch the fluid in a bucket, when you have a few litres just screw the plug up again.
Another useful tip, completely remove your intake before doing the FMIC install, gives you a lot more room to work with in that side of the engine bay.
Nearly all men can stand adversity. But if you want to test a man's character - give him power.
Abraham Lincoln