I have an F4U1 and an F4U1-A template.
But the A template is very basic apparently. Only has a rivet/line layer and a mechanics layers, nothing more. Just 3 layers.
The other template is quite complex with some 50 layers or so, but I can't make out what the difference would be with the 1-A template ...maybe you can combine or compare both.
I don't remember where I downloaded them, either M4T or Simmerspaintshop. But if you wish pm me ...