Astonishing work for his age. The airbrushing of the camo is excellent.
If no ones already mentioned it, it is definitely one of Airfix's new ones as in has lovely recessed lines rather than the nasty old raised detail. Although its out of scale, I don't think the lines are too bad as if you make them too small, they go invisible at this scale. If you want to reduce then, just give the plane a good sand over when its together until they almost disappear, then rescribe with a thin scriber, like the cheap Trumpeter one. But I'm sure Dad already knows this!
I've got similarly big panel lines on my Airfix Canberra build as it came from a similar time. I'm keeping my fingers crossed as I've left them too so I'll see how it goes.
Cannot wait to see the spit with its decals on. Should look brilliant. Well done young man
Alan - TheAppleChap