Advice on a project: man on the street powered Periscope streaming

Hi all-

I am looking for some advice on a project I am working on:

We are doing a livestream Periscope event, on the street. We want to be able to have a person walk around, and be the power supply and wifi hotspot for a cell phone that will be streaming over Periscope (ie, we need a data connection that is fast enough to stream video). It will be a 15-20 minute stream, so not super long.
If I understand this correctly, we need a bonded LTE device that has hotspots connected to it for each carrier, as well as a a power supply.

So I think this will include the following:

One of these devices:

  • AX BR1 ENT
  • MAX HD4
  • (or possibly another device?)

Wifi hotspot devices for that connect to the LTE device:

  • AT&T
  • Verizon
  • T-Mobile
  • We would get pay-as-you-go setups for these hotspots; we are only doing this for 2 months

Power:

  • Battery (possibly a marine deep cycle)
  • 110V Power converter

Am I on the right track? Am I missing anything? Is this even going to work?

Any advice is greatly appreciated.

Thank you in advance!

This question has been asked here Peplink | Pepwave - Forum where I have responded.

Closing this thread as a duplicate.