Clever idea. But it looks like an awful lot of work. And I’m not convinced about its usefulness. Especially for the depot if other people can also use it. I will definitely try the ship MJD though,
Moving from beacon to roid is definitely a complete pain, especially when the rocks are at 300 km distance. Then again, you only need to do that about four times if you are filling an orca. From my observation, an orca and barge can clear a conduit in about four cargo holds (although I cannot swear the conduits were untouched the couple of times I have done that).