To many folks, models are art pure and simple. This guy is a serious artist, the Mustang is a major work of art, and you sir, are a tasteful appreciator of fine art.
That's my take, anyway. I've only dabbled with models, but have always loved 'em. I hate that some think of them as "toys", although even then I have to say you just can't find a cooler toy to play with.
Where does he find the time? Why, he makes the time, of course; just as all passionate people do in pursuing their particular passions.