In your case you can try setting the following properties for Gauge Area 1 (the Numeric Display) in the Layout tab:
- Uncheck Automatic, select Position Mode: Parent Radial; Parent Area: Gauge Area 0
- Offset: 130
- Angle: -90
Take a look at the following KB topic: http://support.nevron.com/KB/a140/add-radial-sub-gauge-to-the-gauge-web-part.aspx
For the Numeric Display gauge, you can also play with the display segments size (Cell Width, Cell Height etc.) to achieve the required result.
Questions or comments, please feel free.
Nevron Support Team