Interactive PDFs in theory can do what you want, but there are caveats discussed usefully in this blog:
Something you should consider is that it will take considerable skills to do this, and it may be more efficient if you employed someone to do it for you.
I've never used Latex, so I can't offer a comparison, but I use InDesign daily to produce customer-facing technical documents which fit your description, and it's an excellent tool for the job.
There is a considerable learning curve, and the application is designed in a context which is not necessarily engineering-oriented, so I wouldn't expect you to achieve full sprint with it on day 1.
If it's at least somewhat GUI based I am guessing I'll pick it up after some practice. LaTeX is almost like CSS or HTML.
I think that Indesign is one of the best choices for that job. I'm a technical writer and use Indesign for years now to create all kind of technical documents, but along with MS Visio, Photoshop and Illustrator. Indesign can do a lot, but not everything.
Interactive PDFs are not required or common for this type of document.
It will save you a lot of heartache if you get some training. Personal trading is probably the best, but the most expensive. There are some very good training books available, such as: http://www.amazon.co.uk/Adobe-Indesign-Classroom-Book-2015/dp/0134310004/ref=sr_1_1?ie=UTF 8&qid=1456909141&sr=8-1&keywords=indesign+cc+2015
The online video training series at TrainSimple.com and Lynda.com are excellent. You can get a 10 day free trial on Lynda.com
And of course, you can get answers individual issues on this friendly forum!