I was thinking of maybe walking up the Bon Accord then back towards Feathertop (or camp top of Diamantina Spur) as a possible traumatic experience, then it occurred to me that Champion Spur could be even worse.
From what little info I have, there's a lot of River crossings on the East
I understand there was/is a track (I can see one on Google Earth up until 1400m or so) up the spine of Champion Spur, and I've read PCVs report of coming down on a hellish hot day a few years back.
I reckon getting the hard stuff done on day 1, uphill to Razorback, then an easier day down Bungalow Spur track is a better idea, than the reverse. That way I can just stumble down the nice track and not have to worry about navigation...
The pros for Champion over Bon Accor are shorter distance and the cons are straight up the spur (1100+m gain), no water once you start climbing (Bon Accord has tank at ruins) and bush-bashing, so need to take enough to make it to Fed. Hut or NW Spur. So, plenty of type 2 fun.
[EDIT] East Ovens not East Kiewa...sigh.