As long as there's a backstory about how you came to end up committing everything, sure, knock yourself out
Nanshork: I'd really like to see the Dread Champion in action. I REALLY like the fluff of the class, and i think it's very appropriate. Among your three options, i think it is the most fitting.
SirP: I really need to take some time to read all of your classes over. I really liked some ideas, and i'm even getting inspired enough to try my own homebrew out, that i've only kept to myself in my head.
This is shaping up to become a really interesting and functional party makeup, i'm really looking forward to see this campaign unfold.