As someone who grew up in two different places (granted, they were strong opposites), and as someone who knew many children whose parents moved a lot, I'm warning you; It has a very negative effect on most children, loosing your friends/peers and not being allowed to "invest" in them. As an adult you might think, oh, well he can use Skype or e-mail then, and what's so bad about making new friends. No. Eventually most of them stop making friends, or make them very superficially. Your kids most likely won't have childhood friends, friends they trust, nor close friends. And no, family (or you) is not a substitute either.
> sacrificing the safety & comfort of a ‘normal life’ and just doing what it takes to make something happen
That's great as long as it's only your stuff you're sacrificing.
I do commend the bravery and spirit, but I'm strongly against including kids in it.