While a prospect who can become 2C is a big need, the Wings have many of the pieces to build an elite D. The future on the left-side looks strong (Edvinsson, Wallinder, Johansson, Sebrango, McIsaac). The right side doesn't have nearly the potential. Also, there isn't any veteran presence.
If Detroit is serious about moving Bertuzzi, improving the current and future right-side of the D makes perfect sense.
The ask from LA should be Roy and Clarke, though Roy and Faber might work. Roy is a near ideal partner for Edvinsson his first 2-3 seasons. Clarke/Faber would make Detroit's top 4 league best in 3-4 years.
Yzerman has a track record of acquiring young D when trading. So the ask from LA should be for the Kings to share some of the wealth of RHD in their system.