ok , today we upgraded the Citadel Warehouse to level 4   ( cost 1,750 Glitter dust )

and are now able to see the cost for the Provisioners' Hall   ( 1,750 Glitter dust )

so assuming each of the 5 Guild buildings costs 1 ,750 Glitter Dust 

the small Order i am in ( 7 active players ) .... needs to acquire another  8,750 Glitter Dust 

to upgrade those resource transformation buildings ...  which will then allow us to see the cost for "level 4"  Tribunal & Academy 

so far we have done

3,500 Glitter dust for level 4 Citadel Town hall

1,750 Glitter dust for level 4 Citadel Warehouse 

.........

5,250 Glitter Dust ...   plus the *Arena @ level One ( which we cannot afford to use ) & from my memory cost **750 Glitter Dust 

*  

**   if the level one Arena cost is different from what i posted will someone please add a reply / correction thank you 

if its not possible to add an update to the game that lets us create Glitter dust from Legendary crafting materials & Legendary runes