Garmin Streetpilot 3 bracket

Can anyone recommend a good supplier for a good but reasonably priced (there goes the Touratech option) bracket to accommodate a Garmin Streetpilot 3...

.. from any Garmin dealer or risk yer luck on fleabay. the cradle is their part 010-10304-00 (from memory) and is taken from the beanbag mount use a round base and screws to attach onto mount, power lead as well (third party ) was BEC01 bare wire end or CLC01B with fused plug,