I looked into comparitors they can only tell the percentage of the chest is full. We were using ultimate 1.1.2 tho. I say "were" because I'll have to do this build at another time. the server locked p and all of our TC research vanishes (as well as our inventories). we got mad and filled a nuke reactor with the plutonium I as and turned it on, when that did almost nothing to the base I turned all the re-enriched uranium into nukes and...... well there's a hole there now and I'm looking to create a 1.5 pack (or using one of the FTB ones.)
oh well, time to start over.... again