Hey, wonderous work guys! This is definitely my favorite concept for a Skyrim mod I have yet seen being attempted. I've been thinking that if no one was going to do this that I would have to start it.
To that end, though, I noticed there is no set of criteria for voice actors listed in the original post, since I am interested in doing VO this struck me as odd as I imagine some of the topic's viewers may also be parties interested in doing VO. Could you post such criteria (or, PM me)? VO is something I'm confident I can do well and would gladly help with provided technical expertise with the CK is not particularly high.
There's a dialogue script you can download on the Files section of the mod page. Basically it has a list of all open parts, along with basic outlines for each character and lines. Currently, the male parts are sparse, as you can imagine they get filled up quickly, but there are still 6 or 7 open now and more being made each week. The criteria are basically acting ability and sound quality. There is technically no deadline once you've been chosen for a role, because quality is the most important thing(I admit, earlier I didn't have a larger talent pool to choose from and wasn't as discerning, but as it grows so does the standard I guess) However, despite their being no deadline, there are instances where I've given roles to people 2 months ago who still haven't shown me anything and don't respond to emails, so there's a limit to how long I will wait, albeit arbitrary.
EDIT: Oh, and you can email samples of any character you want to voice to my email kristakahashi@gmail.com