I'm currently doing the same model. But I'm trying to do it all by brushing. I will also use the decals.
It's my first model since my childhood. so I'm new to the airbrushing, this model is a experiment and I will try to
use brushes, cans and airbrush when I'm ready.
Gdeeroo, don't be scared of Tamiya's TS rattle cans, they are very easy to use and a decent finish can be achieved. I built this very model many years ago and also used the decals for the blue, but rattle cans for the yellow & white, then Tamiya TS clear over the top. All "under the bodywork" stuff was done with brush. Granted, my build is not as good as Bonanza's here (and well done on that, very clean build!), but I reckon you'd be better off using using rattle cans instead of brush. And since you're using the blue decals, the masking line for the yellow doesn't have to be perfectly positioned because the blue decal will cover it up. Regardless what you choose, good luck!
You do not have the required permissions to view the files attached to this post.