Received a notice from Amazon stating that they are taking preorders for the Solo: 3.75-Inch Imperial AT-DT Walker With Stormtrooper (Mimban) as of this post. Price is $29.99 each and these are sold and shipped by Amazon.

If you don't see the $29.99 price be sure to check under "Other Sellers on Amazon" and you should find it there (unless sold out).

Here is the direct link.