The walk from Lake Ada via Silver Lake and the Pine River to Lake Ball is much flatter, but about twice as long, and there is no real track to follow for much of the way - if that's the route you mean - although not difficult to navigate if the weather is good, and you're used to a map and compass.
From near Lake Antimony there's only a feint pad in some places to Lake Silver, and from there on, no track at all until Lake Ball. The first two hours from Lake Ada are quite dull, to be honest. The route would take most people about 2 days to get to Dixon's Kingdom, instead of one.
Great camping at the Northern end of Lake Silver. There's also a hut near Lake Antimony. The first few km of the Pine River beyond Lake Silver would also be good for camping, I reckon.
PS. The road to Lake Ada is easy to drive on in any two wheel drive (at least was a few weeks ago). There is a gate at Ada that is usually locked, and you have to walk from there. (In the off chance the gate is unlocked, the road from there is only suitable for 4wd, and you want to be sure they're not going to lock the gate while you're out!).
PPS. A trip review with photos from a recent walk in this route is at:
viewtopic.php?f=42&t=6209I didn't go all the way to the walls, but most of the way (then back to the campsite at Lake Silver).