Lots of mods now have a way to store data(items, fluids, etc) in blocks, even if they picked up, usually by a wrench(wow, IC2 now have that feature too).
It'll help a lot with creative building and it will help saving fluid in combustion engine for example.
Maybe advanced wrench or some kind of tool? And using that kind of stored blocks in blueprints.
And it's simple to do in code(except the blueprints part(for me)).

If you would like to give it a shot, by all means, go ahead :-)