Not a million miles away from what I did with the bobtail, in fact as that's basically an enamel paint it's the standard Land Rover painting procedure. When I got the Series III it had been painted with a brush, which also isn't uncommon!
View: https://www.youtube.com/watch?v=LiaaguR0zIQ
Never going to look amazing on a modern car but it covers all sins pretty well and it'll sand out to a smooth finish if you really want to go to that extreme.
The Raptor I used is a much thicker coating that holds the roller texture, now I think about it maybe I should've added thinners to make it less sticky and let some of the texture settle out. I'm still happy with the result and it's very tough.
Unrelated, the Caterham online configurator is, sadly, dog shit. Whatever is running it just can't provide what most of the buttons link to and it keeps stalling on the loading page.
https://caterhamcars.com/en/configurator