Yes, that's basically the same as what I am planning on doing, except I am removing the fuel gauge from the quad gauge and adding an oil temp and then using a stand alone fuel gauge in the center of the dash where the clock would go. Your gauges are the traditional 356 Speedster green. Mine are going to be black faced with black bezels and white numbers and red pointers. More like the gauges in a 911. But yours looks great. What a classic 356 Speedster should look like.