Offline maps - Load entire country on Herelink

I would love to use Herelink as our OEM radio at our professional drone factory, we like the size, the screen quality, the link quality.

But…

There’s no way to tell the clientes to avoid 192.168.0.X networks (most of them actually doesn’t even know how to check the IP range or simply can’t change the existing network structure).

I tried to use Offline maps load instructions, it works, but it’s a time consuming (our clientes sometimes does 10 / 20 plans /day) and requires two devices, a computer + herelink to make a flight plan.

Since is isn’t possible to change Herelink ip Range, My last alternative is to try to pre-load the entire country map on a SD card.

Does anyone tried this solution? Any tips?