One thing that I have started to do is to use Tamiya Fine Surface Primer as my basic primer. I like the Vallejo black polyurethane primer but I have never got on with the white equivalent, even though I have tried relative makes such as AK Interactive and Mig. When making the Hawker Sea Hurricane, I used this spray can and it worked fine so I have carried on with it throughout the AMG build. It goes on quickly and easily, smells a bit but dries quickly. I am a big fan of Wheeler Dealers, a UK TV program where they rebuild old cars. The mechanic in that program, Edd China, sometimes uses an aerosol can and he using a special technique of quick sprays across the surface rather than trying to spray a large area in one press. Using this technique has saved me a lot of stress getting all of the parts coated with primer.
My first task was to build the chassis. One thing to mention here is that the model is, what they call, a "curbside model". In other words, it has a minimal suspension - just enough to show when turned over, for instance - and no under bonnet (hood) details so no engine and drive train. This suits me as I have never subscribed to the view that "even if you can't see it, I know that it is there". Anyway, the chassis looks like this: