Only guy I knew who commuted (similar mileage, opposite direction) unfortunately failed to complete successfully. I dare say the travelling didn't help. Perfectly easy for someone with average academic ability to study and work p/t, especially at the weekend without compromising exam results. The flying programme is sufficiently slack that there is more free time than during groundschool, and work becomes even easier.
Don't commute - it will prove to be a false economy in many ways.