Phil, it's not the paint me ol name sake, it's the prep and the years of painting cars, motor bikes, models, french polish, the list goes on

.
This is my simplified method which some will not agree with;
As the Famo is basically made of tin work this model needs to have a decent finish, Start with a good inspection of each piece, you should never worry about getting a panel totally flat as it's naturally wavy after pressing and beating to shape. The billet ali that Armortek have machined to form some of the panels is going to be too straight and have tooling marks in it, so you need to address this first with a file and emery paper.
Then de rag all the edges but dont round off as this spoils the scale appearance making it look like white metal or plastic!
Then degrease.
Then first coat of grey primmer, etch if you like, I like to use it, then see what shows up, the grey primmer will show every tiny detail and all the flaws, address these and prime again, repeat until your happy.
Then the filler primer for cast or rolled material surface texture, that takes a bit of practice (armour in particular), rub down if it's too rough until you are happy with it.
Then the top coat ( the undercoat will affect the the top coat colour, this we use to our advantage) any make is good once you are adept with it, practice practice, distance from the work piece, temperature, your speed, the wet edge, type of solvent, i like flash thinners as they are super quick to dry and give a professional finish if you know what you are doing, these are mainly used to thin base paint to the required consistency for your chosen spray gun ( German paint was often in short supply so was applied sparingly and so it would often be almost translucent!)
If in doubt use Tamiya TS range for the top coat, it is just great but expensive and you will need many cans for a Famo! Use the Tamiya thinners to thin the bottle paint and use it for cleaning the paint gun and brushes etc.
Hope this helps regards Phil.
Mechanical engineer.
2 Youtube channels, Phil Woollard and Magpiespyro. Facebook/ Phil Woollard.
Commission builds considered. Pm for my email.