You can order a pre-loaded SD Card for Internet-in-a-Box on a Raspberry Pi 4, by clicking here.
You can also order the items you need for the “Build your own Internet Guide” Here: (link coming soon)
You can order a whole stand-alone Raspberry Pi Zero based Medical focused Internet-in-a-box unit with everything you need except the power supply and / or power bank, here for $40: https://meta.wikimedia.org/wiki/Internet-in-a-Box/Buy
We will add more links when we find more places where you can order this.