I don't recall the exact price since that was several years ago. I know my total observatory cost was over $10k for all the materials, concrete, pier and some sub-contracted work. Shipping is really expensive for freight. The 750 lb crate had a lot of empty space so I imagine it could have been packed more efficiently. And, you purchase the fabricated, wooden shipping carton. On the positive side, you get a hand-built, custom assembly that is made in the USA.
The process is like buying a car. When I talked to Vito, he quoted me several numbers depending on size/options and we had some give-n-take in the numbers depending on when I wanted to purchase and how I wanted it shipped. You can probably save a bunch by purchasing a TS-3 and building your own base like I did. Another cost saving, depending on where you live, is to pick up the observatory yourself vice shipping it via freight. I could have probably saved over a $1k by renting a uHaul and transporting it myself.
I should also mention that one of the reasons I chose a TS-3 was to custom build an insulated base. I did some extensive research and folks who purchased the walled enclosures, like the TS-2, had moisture condensation issues on the walls. Living in a high-mountain desert, that was probably not an issue but I didn't want it impacting my design.
Attached is a photo of the 80/20 rail assemblies pulled from the crate and being cleaned. The thick roof panels, not shown, were packed on top of the rail assemblies. Everything came ok and I had only one screw that came loose during transport.