Using the cutting room floor to build a Snapchat audience?

In a couple of days when my RAID setup arrives in the mail, i'll be beginning post-production on a feature-length, indie adventure doc. I think i've got about 12TB of footage scattered across various drives - I have no idea how many hours that translates to, perhaps I don't really want to know (gulp!).

I shot the footage (almost daily) for a period of 2 years, the length of the adventure.

We've got a very modest social media following that sits at about 10k in total. Being a small indie production, social media is going to be the main marketing outlet (hopefully among others too).

My question is, has anyone used Snapchat throughout their post-production phase? How did it go? Was it worth the effort...?

We have so much material (12TB), most of which will obviously never see the light of day. I could make little youtube clips and release them along the way, but that requires a lot of editing time (depending on quality).

I don't exactly want to take on another social media platform, but I do like the idea of putting that 'cutting room floor' material to use, to hopefully build our audience further. Also being a 'journey' film, we do have the potential to tell the story relatively well day-to-day...

But is there any point with Snapchat? Do snapchat users only resonate with live/instant action?

Is it a good idea to try and tell a linear story via Snapchat with all the footage we've collected from the last 2 years?

I'd love to hear from any Snapchat users - i've never even opened the app...