Noticed a couple of old threads where you guys were discussing shove/call ranges with 10 BB's.  Bill Chen did a computer analysis for < 20 BB scenarios assuming both players are in Shove/Fold mode, and computed a Nash Equilibrium.  His approach was quite sound.  Its in his book, but it has been published elsewhere, like here for example:

http://www.holdemresources.net/hr/sngs/hune.html

These ranges are unexploitable, and basically optimal against opponents who are also unexploitable.  Thus, a good place to start.