Thanks Chris,
Your Google must be better informed than my Google because I entered every combination of Custom, r60, speaker stands, all without success. I have now e-mailed the company and asked for a 'ball park' quote so that I can discuss with the Budget Controller. At the moment the tide is moving in my favour as the Controller has recently suggested that we need another (different or another the same) AV stand.
I'll keep you posted.
Dave.