If it tells you anything, I finished my CCNP R&S in December 2014. I dedicated all of my studying time to CCIE Written R&S between Feb 2015 until I passed it in July 2016. Even with all of that studying, I failed it on my first attempt (by one stinking question!). This is the only test I have failed in my life, and I wasn’t happy about it.
All of that is to say, you can’t underestimate the leap that is required to move from a CCNP to CCIE level. The Written exam, at least for version 5 (I passed on the last possible day before 5.1) was very poorly written: bad grammar, even spelling mistakes! When you combine the breadth of what can be asked in combination with the expected level of detail you should have is what makes this so hard.
As for INE, it is a great product–I actually won an All Access Pass subscription, and went through all the videos religiously. I also have done some of the workbooks. The workbooks are meant more for you to pass the lab. I view them as flushing out your tool belt so you know what options you have if you are presented with a certain situation with restricted solutions. This is very different than having to have all the theory mastered and memorized (since no outside resources are available on the Written).
You may have noticed in the previous link I gave you all of the linked articles I included. Those links were developed AFTER I failed it, so I could get into the level of depth necessary for what I consider obscure topics (like EIGRP Over The Top, for example).
So my answer, unfortunately, is no–I don’t think what you have listed is sufficient to pass it (at least it wouldn’t have been for me). Of course everyone is different, and some people are exceptionally good at taking standardized tests. You might be one of those people who are. Regardless, what you have listed would provide an excellent foundation. Worst case, studying the way you propose, and if you fail it, you have spent $400 to find out where to put your focus. Like I said, all those links at the bottom of the other post is the result of my $400 failure experience–and you get them for free