Put your story up on Google Docs.
Most editors here prefer that.

Make sure you make the doc comment only so you have a chance to accept and reject comments.
Sometimes editors made mistakes or they don't understand what you want to do.
Also, you want to know what's going on and maybe ask questions.

Only you should have edit mode.
It's your story.

As far as finding editors goes, check my profile page.
It has a list of groups I've joined, and some of them are groups for getting editors and prereaders.