There's really nothing to "put together" - you'll want to consider buying 2 additional things however. I bought a 10' wooden post at Home Depot and sunk that a few feet into the ground. I also ordered a piece of steel pipe directly from Ambient. I clamped that to the wooden post, then mounted the station itself off the pipe. If you go to YouTube and search the Ambient Station, you'll find videos on how different people installed there stations. You'll need to find what works best for you. Just remember to try and find an area out of direct sunlight (obviously) yet as far away from structures as you can get...and the higher, the better to get some accuracy in wind speed. My yard does not allow that, I knew going in that was a sacrifice I would need to make.
My station is between 10 and 15' off the ground. Ideally you'd want it a little higher, again, that's for the wind aspect.