Nice work H. If it were me, I'd leave off the fiddly stuff like the bomb rack rack and dive brakes until near the end. You might even want to consider painting the underside before you put these on so they aren't obstacles.
Aw crap...started a new post...anyways, don't be scared of the painting Harrison, just takes a little practice, in the case of the Stuka you could mask the entire camo and get a good result!