So I checked my box with all the materials I gathered so far, and it seems I could easily build 2-3 of the same functionality. 

I also designed a charlie-plexed pcb for the 5 led bargraph so it only needs 3pins, as I won't have that much free anymore. The circuit can be found here. http://123d.circuits.io/circuits/204380-5led-bargraph-charlieplex