A thought occurred to me as I go out to play my first game of tau (nearly forgetting my gun drones!)
Have you ever gone to a friends/club/tournament and actually fogotten essential parts of your army? Like if your tanks are in a seperate carry case and you forget it?
We all have a pool of units we draw from, either mentally or model-wise that we use to create our armies.
So, for fun, here is what I'd "reasonably" want to put into my army if I could fit it all. It is essentially my pool as one armylist.
I'm not saying I think this should be allowed, but...