Having played numerous games where one player does mines and another player does command stations, while fiddly, it does work.
In multi-player games, most of the time (pre-destroyer) we have gone with contiguous systems with defined whipping boys. This tends to limit the amount of mine rebuilding needed to post Exo or CPA clean-up.
I would not mind it if the defaults changed from 1K and 10K to 10K and 100K for increasing the "give resources" amount. Usually, when one person is building a ZPG, or rebuilding their entire fleet, the resources needed are not chump change.