Welcome, and so glad to see you respect a dog enough to do some research before getting one. I LOVE that attitude! Stick around - there is tons of great info here and everyone cares about the breed SO much! :)
At 18 months and 7lbs I very much doubt that he's got Basenji in him but who knows. It doesn't matter,- he's a delightfulchap and good to have you both on here. Looking forward to more pictures.
The choice is most certainly yours. And thank you for your interest in our breed. And now you may be able to educate others about the breed we care for.