Registering tekkit containers with factions?

[NightLineTekkit]

Basically, I need a way to make factions consider blocks such as condensers and diamond chests as containers in minecraft. This is so that when a condenser or such is claimed in faction land, players who are not in that faction cannot open the container. Currently in default tekkit classic they can. Any ideas on how to go about this? Looking at the source of factions, it appears that the bukkit api already has a built in "container" variable that is used - This means that factions does not define containers by block ids. If this is the case, you would have to completely rewrite the way factions handles containers, is their an easier alternative? (I'm up for trying to edit the source of factions if i can get some help in decompiling and editing it)