Does anyone either have a different way they can make this work, or even a way to make a multi-page template? I have done lots of research on this and haven't found any suitable answers. Any help would be greatly appreciated!
Since not every PDF user out there have Adobe Acrobat Pro DC, and since this is such a large document, I don't think is convenient to use templates and a spawn method for many contraining reasons.
The topic above in that link discusses all of this in greater detail.
Last, my main observation is that not every user will use(or is subscribed to ) Adobe Acrobat Pro DC.
Most people nowadays also open PDFs directly in web browsers and other PDF viewing applications that are similar to Adobe Reader DC (free version with, no PDF editing capablities).
When you open up the page that I linked here, scroll down to Jane-e's reply to the user.
Even thought her comment doesn't appear to be the correct answer in that thread, I would agree with Jane-e that her recommendation is actually one solid approach to your issue.
There's no such thing as a multi-page Template. I would abandon this approach and look for alternatives.