I did that exact walk, but reverse, over two nights. So exactly the same but different! It was also my first (in 30+ years) multi day walk. So keep that in mind if it begins to sound like I know anything!
On the presumption that you're fit, experienced etc, I'd say it's doable over a looong day. Dunno how enjoyable it'd be, but thats not my call.
Descending Jagungal, throughthe saddle and along the ridge: sections of very very thick growth. Chest deep in places.
Tarn Bluff to Jagungal: Staying high on the ridge to avoid the knee deep swampy bits lower down had us scrambling and climbing over trees and granite. either side of the geehi north of the bluff is 'fast' ground.
Smiths perisher was a bit of a bush bash but not too demanding.
We walked from beside the Geehi near the bluff, to Jagungal summit and back to Cesjacks in a long day with heavy packs. We were having dinner by 7.30pm after starting about 8.30am.
* It's gunna be wet. good boots and gaiters. Once you're off the bulls peak trail, every step is a potential ankle roll. Even if its dry, its wet.
* The ascent from the south east is a relative doddle, firm, grassy, spectacular!
* It is relatively dry there atm, so your water points (presuming you don't want to deviate) will be the doubtful creek and geehi river. You'll have a long stretch between the two, including the summit.
Summary: Doable. Definitely insane. Not easy.
Final comment: I give it two thumbs down. Take a tent.