Here's a good product.
Portable Pipe Hangers They may be on the expensive side, but they work really well. I had a job that these were "spec'd". Look at the PP10. I think it would have worked well for you, elebob. Click on the "products", and then click the "view our entire product line" on the bottom right corner.
Regards,
Doc
[This message has been edited by The Watt Doctor (edited 03-08-2003).]