I know what you mean. The dash is one of the most expensive items to restore due to cost of gauges and other items like wiper motors which are also impossible to find. I figure you can spend up to 3.5K to 4K just on the four gauges these days. You can still find the French speedo and gauge cluster for under 300 each. The other two, tach and volt gauge, are expensive though. Rod Shaver did have a nice restored US speedo for $850 last month at Tower Park.
Steve A.