This has to be the 100th time I've seen someone asking users on AO to draw for them. Personally, I say you should do the same thing other aspiring manga artists and cartoonists have done for years. Practice, practice, practice. I could understand two artists collaborating and sharing ideas together. They're trying to reach the same goal and--I'm sure--they'd be respectful of creative commons and such.
You should also know that a great story always backs up art that some people would think or assume they could reproduce via their five year old kid. It doesn't work the other way around. Great art with a lack of story doesn't make for a good manga/cartoon/comic strip. If you want your story to be illustrated, I personally think you should break out the pencil and start putting some lines on the paper.
If you need any pointers/advice, I'll offer it to you and I'm sure other artists here on AO would do the same.