My response was quite short, as it really just takes a bunch of messing around, no real 'trick' to it.
I figured I'd offer some premade characters people can straight up play as is - or use as a base for further customization. So, for those that don't like to spend ages in a CC and appreciate a sliderset over a save-game, preserving the ability to create your own with the Keep, this is for you!
No credit is necessary although obviously a link to the source would be appreciated if you are ever directly asked =) Redistribution prohibited, if I want to share this preset on other mod and/or sharing sites, I'll do this myself.
I plan to do more of these over time so keep an eye on my Tumblr or my blog here to stay up to date.
Some ingame shots of Deyvin:
And here are his slider settings:
And that's that, have any questions, shout, otherwise GAME ON.