Dean, I'm not sure if you've done this or not, but get your interview footage transcribed. It's a lot of work up front, but it pays huge dividends down the road.
It may be best to sit down with a writer instead of an editor. Figure out the story you want to tell and the structure you want to use. You probably already know the story you want to tell, so write it out. Heck, you basically nutshell the story each time you post on the topic. As an editor, I don't need to watch a hundred hours of footage to get to that basic statement.
Starting with your basic statement, make a one or two page synopsis. Then make a treatment/paper edit, including what visuals, narration, music, etc. that you think will go into different places. Then sit down with a documentary writer or editor to look over what you have and get feedback from them. You can post what you come up with here and get excellent feedback.
Don't put it on your editor to reinvent the wheel. Especially if you know exactly what kind of wheel you want. If it's some Goodyear XKG All Season radials with white side walls, 205/85, etc., then say so.
Take a look at your Need and Problem statements again. You're setting your editor up for failure. I even have the 3 reasons why they will fail – not creative, not collaborative, and/or not the right mix. We could rewrite the statement to read – unprepared filmmaker seeks editor to do the hard work and accept the responsibility for things not working out right.
Editors are creative and collaborative and they don't need to be the "right" mix. The more specific you define the mix, the harder it is for anyone to meet the criteria. It's the filmmakers job to be the "right" mix, that's why they are telling a unique story.
It's really the filmmaker, especially the less experience they have, that lacks those qualities. It's not that the filmmaker isn't creative, or collaborative, rather without the experience, it's more difficult for them to clearly see the vision floating in their head, and then to clearly communicate that. The problem arises when the editor is unable to "divine" what the filmmaker is "seeing".
I hope I don't come across as harsh, and it's definitely not my intent, but one of the most common problems I see over and over again is the filmmaker him/herself getting in the way of making their film as good as it can be. And I'm the first to admit that I've been guilty of that on more than one occasion! But no one said the learning curve was easy or pleasant...
Anyways, my $0.02 – which won't even purchase fumes at the gas station :-)