Even with a large g/h, these take up a lot of space.
I would advise against trying to mount it. First these get massive and very heavy. My pandurata was over growing a 20" basket, hanging by a very heavy wire wrapped around a large metal brace holding up the roof. One morning I walked it and the wire had unwrapped and was sitting on the table below.
Second these like high light and LOTS of moisture.
Here is a pic to show how big these get.
Coelogyne pandurata LUR_5187 by
kentucky4, on Flickr
Enjoy your beauty!
Brooke