Is it just my math or are there not enough cells in 6 floors to get rank 5? @Fox ?

@everyone else - does it take more orbs to activate each stage as you get further or is it static at 40 per node?

Thanks!

@ibobs72 I did 4 nodes in the first dungeon and it was 40 orbs each. If it stays the same (I think it does) and the second dungeons nodes are 60 orbs, then the first two dungeons should cost 2000 orbs.
Also the cells are 40+60+120+150+290+1110=1770, which is enough (100 for crafting and 1670 for ranking).

Also @Fox, the game says the progress in the dungeons is permanent and they are active once per month. Does it mean we will get more chances to obtain Gortak, or it's about the other Warmasters? And how will it affect the Nemesis dungeons?