My take of Necropolis post-revive farming.
I took on path 5 (R Goblin) and used up about 60 revives total. I felt it was possible to do a necropolis without the farming (not that I wouldn't do it if it was available). My only gripe was I spending more time dancing hokey pokey with AI than baiting out sp. And when I went in or dash forward is when I get the sp in the face. While dancing with AI, I watch the timer tick off and start getting rooted. At silver centrion fight, I was planning to quit out, but since I've was 4 hours (take short breaks here and there) into it, I decided just to see how far with what's left of revives I had left.
Another thing, dashing back is like moving in quick sand, especially against Knull sp2, shocker sp2, or any long animated sp. You know it's coming, but the swipe back isn't registering as fast as your thumb swiping. It's like it's a half second behind.
Other than these 2 issues, I believe it's doable. So I might go ahead and finish off Necropolis instead waiting for spring cleaning offers of rank up material for valiant.
So those that have a few paths left in Necropolis, I think it's doable without the revive farming, but I would do the farming if it was still available.