Recently revewing astromart i came accross an add for a new observatory dome for sale from a European manufacturer. On review of there site, there automation system seems quiet cheap compared to the competition. Its suitable for both Domes and Roll Offs.
Note the software is free, but you have to buy the ScopeDomeUSB controller (300USD) and motors. At present the only motor available ont here site is for Dome roation and shutter control. But the ScopeDOmeUSB can also control other devices and perhaps even other motors. Might be worth while looking into.
http://www.scopedome.com/en/scopedom...oofdriver.aspx