It is probably easiest to remove the turbo and and exhaust manifold as one piece then split on the bench.
If its your first time i'd allow 3/4 to 1 day. A regular can do it in 1-2 hours if it has all been off recently.
If it hasn't been off for a long time expect seized nuts, rounded heads and possibly the threads to strip in the head where the exhaust manifold studs go in.
If you still have the cat add 1/2 day!
You will need a decent socket set to get on to the oil/water pipe nuts under the turbo. Tools that are pretty much a must IMHO. 14mm offset ring spanner, 12mm 1/4 socket on around 300-400mm extension with a flexi joint to get to the oil/water pipe off. 14mm single hex socket 3/8" and 1/2". Oodles of duck oil/penetrating oil, new oil/water pipe and gaskets, new studs & nuts for the exhaust manifold, 7 replacement knuckle skins, 2 thumb grafts and a a couple of lesser spotted, small handed midgets. (if you have hands like shovels; do not pass go).
If you need a turbo core to get sent off I have plenty of "requiring rebuild" CT26s I can sell you.
Your other option is offer a really nice BBQ and some beer and see if any of the regulars will point you in the right direction whilst you do the hard graft