Check out some of the pre-painted 1:144 trading models produced buy F-toys, Doyusha, Tomytec Gimix and Café Reo. Remember, just because something is pre-painted doesn’t stop you from painting it or improving it yourself.
In fact quite a few of the Platz kits like the F-1, T-2, F-2, F-4EJ and UH-60J are all F-toy sprues. If you’re after a 1:144 Spitfire the F-toys Mk.Vb is way better than the Minicraft/Crown/Arii/Revell (all the same kit) effort. Same has to be said for the Café Reo B-17 which is far better than the awful kit now sold as part of the Minicraft range.
On a similar vein, the pre-painted F-4EJ Airfix Mini kit is one of the best 1:144 scale Phantom out there but suffers from a problem you will encounter with many kits in this scale which is large and overly simplified wheels and under carriages.
Anne