I am not sure if there is an actual "track". If there is, then I have never followed it. I have seen the odd duck (cairn) here and there - but it is not worth the effort in trying to follow them. But it is generally easy and enjoyable country to wander through. No real scrub - but patches here and there, that are best gone around. From Lady Lake to WOJ - generally allow 1.5 to 2 days. You could walk from L Nameless to WOJ in a day (in summer) - but the country is so delightful, and campsites so nice that it is good to take your time and see some of the sights on offer. Its also a bit of a maze or labyrinth - many small and complex lakes to find your way around, small hills, thickets of pencil pines etc. A few years ago, I shot some video on a walk from Higgs Track to WOJ and beyond. The first 4 minutes cover getting to the Walls and show you what to expect.
https://youtu.be/uN63cXlmbuoDave