Some pics of the progress....
All the insulation is in, and the wood is going up. I tested out the fan today while smoking, and believe that to be on the safe side another fan is necessary to evacuate enough smoke. I'm going to have another 110 CFM ultra quiet fan installed which will vent out the other side of the shed. I hate to spend the extra money, but better safe than sorry and much easier to do this now before the rest of the wood goes up.
closeup of the fan
exterior shot of vent
light switch/fan switch
another shot of the fan
interior wood sheathing