One thing nobody's spoken to ... the gun's worth what it's worth to you, and you are going to shoot it. The fact that you like the way it looks makes it worth a premium to you, but probably not quite as much as $1400.00 for what you are going to do with it. But what is that "look" on your son's face and in his eyes worth to you? That's a question only you can answer!!
But I know that look. And it doesn't come along every day! For me, it's a priceless thing, and becomes more compelling if the rice and beans money ain't jeopardized. Opportunities sometimes don't come along all the time, and many times don't hang around for long. And when they are gone, they are .... well, just gone! I know I'm not helping with your conservation of discretionary funds, and I admit right up front that it's easier for me to spend your money than my own. BUT, I think, while reading between your lines just a bit, that "look" makes a difference in this case ... I think! Again, only you can say, but for whatever it might (or might not) be worth, somehow, I don't think you might regret the "look" you are likely to see if you can show your son this very nice bit of iron in person!
I'm just thinking and typing here ... dangerous for me and for you both! Just stirrin' the pot a little and then I will stand by and watch and keep my mouth shut! You are welcome, and good luck with your decision. I'm just sayin', sometimes ... sometimes, it ain't about the money (if you have it unencumbered on hand!!