Janine,
If Sloan's need is to demonstrate .LRN to those with limited technical background, why not skip any installation and use a VMWare image or .LRN LiveCD like the one Malte is working on?
There would be hugely less amount of work to maintain it (no need to select tcl vs. bash, deb vs rpm vs etc, no need to track or resolve openacs/tcl/aolserver/tdom version conflicts), and also way less work/time to install and try it out.
Also, fwiw I was planning on including a .LRN install on my next Oasis release.