General Guidance

I’m not too familiar with the entire WordPress thing–guess I’m late for the party, but it looks like the party is only getting wilder. So I have 2 general questions, just to be pointed in the right directions w/o wasting time:

1. I want to include webGL, three.js & cetera in a few locations. Should I delegate that to a “Page” and treat that as a single-page app/subsite from that point on, or …?
2. More complex off-the-shelf components (such as DHX/DHTMLX gantt, schedulers, treegrids): should these be approached (again) as single-page apps or incorporated into the project head document(s) to maintain scope?

Thanks in advance for any insight on this.