The resulting solution must run on batteries (coin type ideally) and I wanted to get a sense of the operating time between battery changes.  The spreadsheet utilized the cells in red as variables. Assuming a wake up during of 30ms and sending a sample every 100 seconds, I can run for an acceptable amount of time.  The problem occurs when I include a 78L33 level converter, 555 timer, and a sample sensor like the LM35. I will need to look into this as this might be a show stopper on the battery only constraint.

I have set up my test circuits to using a 555 timer and create a 99% duty cycle for a duration of 100 seconds or so. It does wake the xbee up and transmits to the host software. Now I need to re-evaluate things from a power consumption side.

I will measure the actual current when I build the prototype.