There's some great walking in the Victorian Alps and the Grampians, but it's very difficult to put together circuits - especially multi-day ones - without a significant amount of travelling cross-country and/or on 4WD tracks.
Or drive into the Howqua Hills - via Mt Stirling or the Howqua Track - and do MacDonald to Clear (from Low Saddle Road), or up Helicopter Spur and over Magdala, Howitt and the first bit of the Crosscut (from Upper Howqua Campground). Neither of those require a 4WD although the roads in can be a bit rough. Both two-dayers which can be extended if you want.
I was thinking this weekend that you could easily connect those two, if you had the time and didn't mind doing some distance on an open 4wd track. Drop the gear at the start of the MacDonald north face track, move the car down to the riverside campground, walk back up the road (it's only 2km), gear up, up MacDonald, over the Nobs, High Cone, Square Top, Clear, keep following the AAWT north instead of going down to the Clear Creek track, through Chester's Yard, over the King Billies, quick side-trip to Picture Point, over Magdala, Big Hill, Howitt and the Crosscut to Buggery, side-trip to Speculation, back to Buggery and down Queens Spur to the old logging road, along the river to the Upper Howqua camp, up Helicopter Spur, down the 4wd track over Lovick, side-trip to Square Head Ginny, to Bluff Hut, then the walking track over Eadley Stoney and the Bluff. Then either down the official route to the carpark, a short distance down Bluff Link Road to Refrigerator Gap, down Refrigerator Gap 4WD track to the river and Brocks Road, from where it's not too far back to the start of Low Saddle Rd and the camp; or keep following the cliffs as they head south and take the footpad down that southern spur to the river, over and, again, you're back on Brocks Road. Wonder how long that would take? Six to seven days for me, I reckon. But you'd cover the best bit of the Victorian section of the AAWT.
Ye dogs and little fishes, that would be brilliant in the winter!!!!!!