I just went looking for a mod like this and found you. I always reach this point in Factorio where the non-personal construction bots start slowing my build-testing down. It feels like going into the kitchen every time I want a sip of water, instead of just reaching for the full cup right in front of me. :)
I've never used this mod before, but I did read the information page. I'm impressed with your method's creative approach, but I admit it 'feels' scary due to the force-swapping. It feels like a save/load at the wrong time might break something, but I have no objective reason to feel that since I haven't used it. If you release a version for 2.0 I will absolutely give it a shot and report back to you, regardless of the approach you take.
I'm neither a programmer nor Factorio expert, but I felt like I would throw some ideas at you incase something clicked and could make your life easier if you do decide to update. Can the area covered by a personal roboport be considered invalid for normal roboports. Keep track of the X/Y coordinates covered by the personal roboport and deny other construction bots from taking a job if they are within that boundary?
Anyway, I wish you luck and infinite patience if you do decide to resurrect this mod :) Even though I never used it before, I appreciate that you took the time to make it in the first place and are considering bringing it back.