Looks like you'll be able to recreate the entire Persian army at the Battle of Thermopylae in 28mm Have fun!
Thats a lot of models to paint. I feel your pain, I still have a lot of samurai and ashigaru to paint up, and am nowhere near to my final goal for making a humongous samurai army!
I think it's a good exercise to get your attention off of other things in your life. Throw yourself into it!
If you check my blog, I have been. It has definitely been helpful. As you say, stress relief is a good thing right now