If he has a nice suit, that would be pretty cool as well. I have been giving thought to a Superman display where it's him opening the shirt to show off the costume, and hey, costume suits and fedoras are just as good as regular suits when it comes to showing em off on a mannequin
Keep me informed, and thanks for letting us know about this!
Chris
In NC, you can get a real suit at a Goodwill, Salvation Army or other thrift stores for around 10$. They're usually in really good condition. May be a little higher in LA, but it'd be worth a look.