Here are some pics of how I've progressed-
Metallic base coat using Mr Metal, lacquer tint paint and Copic markets for the metal discoloration effect.
After the first few coats of lacquer paint.
Also, hand painted ID number.
The lacquer upper coat pulls the lacquer burnt umber tint out (seen below). Then Copic marker for colour variation.
First oil (slurry) wash. Just a mix of burnt umber, payne's grey and ochre.
Close to done. Now decals, touch up and more weathering.