How to make a custom dashboard
Building a custom dashboard or instrument panel "insert" can be done using a variety of materials and methods. One way is discussed below.
 Dash panel insert formed from sheet aluminum
This panel was built to fit in the location of the stock instrument panel. The empty hole is where a 2-1/16" digital speedometer mounts to keep it hidden, thus making the tachometer the more prominent gauge.
Most stock instrument panels can be removed from the dash panel, and a new panel cut from 1/8" aluminum. Each gauge in the panel shown below was hand wired since, as is the case with most new cars, this one had the gauge panel controlled by the PCM on a data bus. Lots of work, but the end product appears 'old school'.