I went through the same thing, just ordered the magpul.
I have heard that the magpul performs to the same level as the MDT stocks and at a considerably smaller price tag. The one thing I liked about the MDT over the magpul is the option to use multiple butt stocks. In the end I couldnt justify the $$$ so went with magpul.
Interesting. Magpul + Bottom metal and you are pretty close to a MDT. Of course add in grip and Stock, and you more, but not that much more.