Now that I've completed the basic build documentation for the Hackaday Prize project (with refinement and minor additions to come), I am now the proud owner of one 18" RTI dome with controller, and two 12" RTI domes with advanced stands. This is more than I need, so I'm looking to sell the older of my 12" domes. It is identical to the newer dome except for two features:
1. It doesn't have an OLED display on the front.
2. It isn't wired for the servo shutter control I hope to develop. It should be easy to add that capability to it once I have the design down; you'd just need to use different output pins and wire it manually.
Neither of these affect the quality of the data you get, so functionally the older dome will give the same results as the newer one.
If you're interested, or have questions, drop me a line at leszekmp at gmail dot com.