I feel like you may have too many sources at one time, especially with how you have time constraints. In terms of content, it's a lot to know, and Saunders in itself is quite overwhelming. Personally, I would choose Hurst OR Saunders, not both. Though Hurst would be the better one simply because of the review video's and practice sheets it comes with.
In terms of questions, practice is key. Do as many as you can. Not 1000 questions.... at least 2000+ questions! UWorld, Kaplan, and NCLEX Mastery are, I suppose, somewhat inherently different. I did not use Kaplan myself but do a search here if the "decision tree" is useful because I've heard some contradictory to it. RN Mastery from my experience was an excellent source that heavily focuses on content but tends to lack on other important topics on the NCLEX, like prioritization... and also that they only provided MC's and SATA's, no alternate questions.
UWorld, in my opinion, is the best of the three and by far. Not only does the program look like the real NCLEX, the questions were the closest to the NCLEX in terms of style and content. UWorld is complete with alternate questions, and this definitely helped me being comfortable in writing the exam because it all felt familiar.
What I did was first study my core content (Saunders) + RN Mastery. After that, I used Prioritization and Delegation by LaCharity (and I highly recommend this because I had quite a few of these questions on the NCLEX; and they are very difficult. You also get a lot of these practice questions on UWorld too.) After using PDA, I used UWorld.
Practice, Practice, Practice!