Hi Budawang, and welcome to the forum!
If you want to go from Cloudmaker to Paralyser, I'd also suggest going via Marooba Karoo. It's a short back track from Mt Cloudmaker, but it's a lovely spot (the attached photo doesn't really do it justice).
From there, you will be able to drink from Kanangra Creek before heading up to Mt Paralyser. It's then a walk along the ridge tops South West to Mt Thurat and the firetrail which leads back towards Kanangra Walls.
Check out information on the Three Peaks (which covers some of the same route) -
http://www.david-noble.net/BlueMts/Coxs ... Peaks.html and
http://members.ozemail.com.au/~aburke/p ... /index.htmHere is a link to a photo album of a trip that went from the fire trail over Mt Thurat back towards Kanangra Walls off track -
http://www.dingogap.net.au/albums/clubw ... 11Oct2014/As for number of days, that really depends on what sort of experience you have, how much weight you want to carry, and how fast you want to go.