If Peter is looking for a complete dash, the ebay ad from Hawaii doesn't match his needs. That guy seems to be selling just the gauges + the gauge panel. The ad reads:
1972 BMW 2800 CS instrument cluster, gauges, original, wood panel
“instruments good condition complete working when stopped. wood weathered, dash not included.”
Peter Coomaraswamy said:
I just don't want to send mine out for who knows how long as I won't be able to drive the car for that period.
When I sent my wood out to Madera Concepts, my memory is that they turned it around pretty quickly.
On the other hand, sourcing and combining good used parts may not work so well:
- As rsporsche points out, if you source veneered wood from several cars the pieces are unlikely to match.
- Some of the pieces - notably the horizontal plywood "tray" - are susceptible to moisture damage, so you are unlikely to find good, used examples. Madera can supply new parts.
- Disassembling/reassembling a dash is a big job. If you combine used parts from multiple sources, the result may not fit/look all that great. Given the work involved, I'd recommend doing it right the first time using new and freshly veneered/upholstered parts.