Default Options to get Facebook and GMail on gear?

I just upgraded Gear to Null, but not really convinced I like it. Mostly it kills battery, I was getting about 3-4 days on stock, on Null I have got just 1 day and down to 20%. It's dropped 10% in last hour because i received 2 texts! Only looked at the time about 5 times today and received 2 emails and 2 texts. So thinking of flashing back to stock, but I want to get facebook and Gmail on the gear. What can I do? It seems even with the Null rom I can't reply to Facebook messenger chats or emails anyway, just read and show on phone or delete..