Is this truly a realistic BMCC editing setup?

I'm a one-man production team of reasonably high quality short art films using a portable setup, without a traditional larger 'home base' editing system. Right now that consists of a 7D and MacBook Air (plus obvious other things like mics, etc). I do my post-production in hotel rooms, trains, planes, you name it.
My plan was to make a significant upgrade to a BMCC and a max'd out Macbook Pro Retina, but I'm starting to worry that this system is less than realistic, and that editing of RAW, or post-graded ProRes footage will be a constant bottleneck on a portable. I'm not talking about ridiculously complex multiple camera editing - I work in a fairly archaic manner - but I would VERY much appreciate hearing from those who have tried a similar setup (RAW, Resolve, MBP Retina) and what the true limitations are, and whether this combo is more of a dream than reality. Product specifications can give an indication, but they're not the only measuring tool - for instance, my Macbook Air is not supposed to be used with FCPX, but in actual use it works like an absolute charm.
Thanks for your help...I'm at a crossroads right now and would appreciate the input.
Cheers,
Jamie
My plan was to make a significant upgrade to a BMCC and a max'd out Macbook Pro Retina, but I'm starting to worry that this system is less than realistic, and that editing of RAW, or post-graded ProRes footage will be a constant bottleneck on a portable. I'm not talking about ridiculously complex multiple camera editing - I work in a fairly archaic manner - but I would VERY much appreciate hearing from those who have tried a similar setup (RAW, Resolve, MBP Retina) and what the true limitations are, and whether this combo is more of a dream than reality. Product specifications can give an indication, but they're not the only measuring tool - for instance, my Macbook Air is not supposed to be used with FCPX, but in actual use it works like an absolute charm.
Thanks for your help...I'm at a crossroads right now and would appreciate the input.
Cheers,
Jamie