Olympus E-M10 Mark II and lens recomendation

[OrionN]

I have decided to ditch my Canon Rebel T1i that I used for a long time and go with Olympus E-M 10 Mark II camera. I really don't have much lens invested in the Canon. The Olympus camera is significantly smaller and smaller size lenses. I am trying to decide on two lenses with focal length from ~28 to 300.
Any Olympus user out there who can give me a recommendation?
TIA

[OrionN]

I am thinking of these three lenses
M.ZUIKO DIGITAL ED 12‑40mm 1:2.8 PRO
M.ZUIKO DIGITAL ED 60mm 1:2.8
M.ZUIKO DIGITAL ED 40–150mm 1:4.0–5.6 R

I also consider the Olympus E-M10 Mark II.
These cameras use 4/3 sensors so the effective (35 mm equivalent of these focal legnt is double.). Effectively I have focal lengths from 24-300 mm. Anybody with experiences with Olympus mirror-less camera?