My friend suggested this type of run, almost a low % style run where you interact with as few Zonai objects as possible. I think it’s pretty feasible, the construct factory would seem to be the most difficult part if you were doing all dungeons. Thoughts?

That's a bit too difficult/unimportant to become a category IMO. I'm pretty sure all dungeons without using a lot of Zonai tech is impossible. Any% might be possible without using any, but not using Zonai tech would most likely only lose a few minutes, and wouldn't really make any% more interesting or anything. That's just my opinion. If you want to time yourself doing this challenge, go for it.