It's not like Vim is some programming language that takes days to learn.
Really, all you need to know to get started is to:
1. get yourself accustomed to i/j/k/l
2. learn the difference between input mode and command mode (and how to switch between the two)
Literally it takes a minute to learn those two (although getting accustomed to it will take actual usage, but then again, 1:1 coaching won't help you with that part either, you'll have to do it yourself) and once you're there, the rest you just learn along the way.
More specifically, I don't personally like the idea of coaching because it I just don't like that style of learning. To me, a video course would allow the user to dip in and out, grant more flexibility, and generally be more value for money.
The laracasts focusing on vim, or emacs rocks series are good examples.
To be honest though, I don't think I'd pay for a video series either. There's already so many good resources for using vim.
In my humble opinion, asking this question here is probably not going to resonate with the audience you would be looking for in any case.