I've uploaded the configuration for the excellent freeware DC-10 by Tom Ruth.
In this posting
http://www.fsdreamteam.com/forum/index.php?topic=6682.0 I raised the issue of the large staircase not reaching the floor level of the DC-10.
So whilst the stairs don't quite make it, it doesn't appear to bad (in my opinion).
The zip file contains the folder with the gsx.cfg file contained within. Unzip the contents to C:\Users\Username\AppData\Roaming\Virtuali\Airplanes (Windows 7).
Otherwise, just open the config file and copy and paste the entire contents into the DC-10 mini airplane editor.