I've been able to add a "sort of" power pole behavior to the roboport, but i'm not sold on what i've been able to make...
As i suspected, only power pole entities may be connected by copper wire, so I had to go with the dummy power pole route, which adds yet another level of garbage entities to handle and quite a few minor issues:
- The cable connections are automatic and you can't do anything to them, unlike normal power poles where you could use a copper cable to wire/unwire them
- While building a new roboport, there's no "tell" on which power poles will be connected. You will see the connections only after the roboport is placed. This makes it hard for the player to tell whether or not the new port will be connected
Aside from all of this tho, it seems to be working. I've made them reach up to the big power pole radius, so if you want to benefit from this auto-power feature, you will have to build your ports closer together than the standard logistic network range. I feel this should introduce some kind of decision making by the player, instead of becoming the obviously better solution (game balance yadda yadda :D)
I'll be looking into the radar thingy next, i'll see how it goes!