I have an iPad mini also. Combined with my iPhone5 I can do damn near anything.
Tapatalk is nice on the Mini as well as being able to take pics and upload straight to FB or whatever.
I have 4G on mine so I can use it anywhere.
I can't see any reason to run a Cub on pump gas. It will never run to its full potential.
I think you're better off building a stout 4mm Serval if you want to stay on pump gas.
With CPI and 35mm PWK, they can be in the 70s pretty easily.