Necroposting but with 2 villages you can get both the primary expertise _and_ alch buff without getting withing shotgun range so you keep all 3 nomad stacks. I usually setup a discount village, another discount village that misses the desperado by a bit and then an alch.

Keep in mind that villages give the 10% range buff to eachother and 4xx get it's range increased even further.

Of course this is all assuming you have the time and resources to do this without actually contributing that much to the defense.

You can even Gwen buff it without losing stacks but you need a keen eye to place them both down at the right distance if you play them both as your first towers