Im about to get an LG G4 Beat and i got some questions

Hi, im getting a G4 Beat soon and i wanted to ask some questions.

Whats the easiest method to root this phone?

This one? http://ift.tt/1KyR3aZ

Or this one? http://ift.tt/1LZ3Wsv

Or maybe is there anything new?

And what sd card should i get? The cheapest one or should i go for an sdxc?

And a last dumb auestion, will a 3000mah G4 battery work on the G4 beat?

Thanks in advance!

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