I finally succeeded in getting a page to work nicely with the Sketchfab viewer embedding. I happened to have a lot of 3D assets I created for Elder Scrolls Legends VFX hosted on Sketchfab so it was the perfect chance to get the kinks worked out.
I was able to create a project template page that I’m fairly happy with. It doesn’t have any fancy parallax over a background image like the Protostar page has but it’s a nice reserved professional looking page.
As with almost everything in Word Press, getting any kind of file organization is a Plugin. Being able to duplicate my template post? You guessed it Plugin!