The overall challenge sounds fun TBH ...
Interesting screens and flows to think about.

Still, I have no idea how the hell they want to transfer just GAS ... If it's converted to ETH then why not ...

If we don't spend too much time on this then we can have some fun, too. (eg. few screens, then some templatety regular design patterns for shit like Settings)

Fuuck .. could be fun actually :D.
Let's discuss on Signal.