I wouldn't call Rex Hunter Captain America exactly. Well okay, yes, he's very similar, but to be fair, his name and imagery are meant to be products of the time he was in... so I would think a little over-the-top patriotism would be perfectly normal for that generation.

I'll look into how I'm gonna work out my appearances some time today when I have time. There's plenty of programs on the interwebs for designing superhero looks.