Well its not a bad plan, but we all ready have that in the game, you just don’t have it yet my friend.
If you have two outpost/moons you can move and not been seen it’s a 100% fleet save and no Phalanx can see you. And yes you can take your Resource with you.
Your 2nd option but without being hidden is to use your friends planet as use a group defend that allows you to send you fleet on a fleet save mission and then turn around *With all the Resource* and then come back.
It’s up to you how you want to do it. But I think this is what you’re talking about any way.
NM - Andy