All the dry lining examples in my D.I.Y book are for standard height ceilings, like you'd find in a 2 bed semi, but we had height . sloping ceilings and large ceiling joists to navigate.
Luckily for us our friend peter volunteered to help us out, as he is quite handy with a saw, but he is more used to making furniture than building walls. This gave us someone to bounce ideas off of, when we were trying to work out how we could fit each section. Crucially, he could saw straighter than me, and make rebate joints as well.
Tina and I had a lot of fun manoeuvring it into position as it was long and heavy, and kept getting stuck on different joists and bits of ceiling. It took a lot of effort, with plumb lines and lasers, to ensure that the wall was straight and hopefully vertical as well.