I'm like 30% done. There's a good chance not all of the doodads you see now are going to be retained (such as Thrall's Hut). But this is a learning curve for me so I'm figuring it out. In the meantime, just don't play as any warcraft races and you'll be fine for the time being.
On the flip side, I am making a couple of balance changes:
1) Experimenting with a watch tower in the middle
2) Rock towers at the linear thirds (adjustable choke size for defendant)
3) Linear 4th ramps reduced to 2x (down from 3x)
4) Main base size reduced slightly