The key cover is available on daraz.pk I guess. Or you can get it from AliExpress.
You r right about the low fuel indicator. However, I doubt any dealer will be willing to modify it. Anyhow, V2's fuel guage goes to E when there is still at least 7 litres of fuel remaining, so I guess if u refuel every time the needle reaches E mark, u will mostly get around 30 litres of fuel.