Whilst I can't speak on the editions that suit the new study design, I used the A+ Notes and Checkpoints consistently throughout the year and found them to be the most reliable resources (this is comparing them to other study guides I owned). I used the A+ Notes to solidify my understanding on each area of study and, personally, think they provided the best summaries without skimping on the essential information. For the Checkpoints, whilst I did find them useful to consolidate my knowledge prior to SACs, I tended to only do the questions taken from past VCAA exams. However, considering it's a new study design and there is a subsequent lack of past examinations, I think that the questions in Checkpoints and also the A+ Notes would be particularly handy. Aside from the resources you've already mentioned, I don't see you at a disadvantage from not having any others.

Of course, don't forget to look at the notes on here as well! Whilst they may be tailored to the previous study designs and hence may contain some irrelevant material, you're likely to find some overlap. Furthermore, if you search 'vce legal' or the like on YouTube or have a look at websites such as the courts' and Parliament's websites and
this, you're likely to find some supplementary information too. With some googling, last year I found a full PDF of the Constitution (which excited me a lot more than it should have lol).