mmmm.  lets see.
Take those 7 drum tracks, bounce them to a stereo mix.  Keep the original 7 tracks in the session just turn thier voices off.   2 tracks for drums, 6 tracks for gtr's, bass, and vocals.  Wait - maybe a stereo mix of the drums less the kic and snare.  4 tracks of drums, gtr's, bass, vocals - sounds like a pretty good demo set up for free.  
Why is it that everyone on this site seems to hate digidesign and protools?