I would create it as a mashup. Mashups overview ‒ Qlik Sense Developers
The mashup allows you to pull existing objects from other applications and display them in a webpage. You can even create a "codeless" version using the single configurator.
Going to Qonnections 2018? I'll be doing a breakout session on Qlik Sense integration options.
Agreed. The Pin-It concept uses this approach as a mashup as well. Dalton Ruer (aka QlikDork) (drr) highlights this in his blog post: http://qlikdork.com/2016/01/a-bunch-of-whiny-brats/
There is a video in his post called "Executive Dashboards Made Easy" that shows this very capability.