Welcome! Congrats on the new adoption.
Be careful though, they can get into severe fights. Giving Milka space to avoid him might help.
Do you have photos? We love pictures!
Be aware if you do decide on the DNA testing (which could be very informative) that it doesn't necessarily tell you the parents just what's in the lineage.
Welcome… I am guessing that your girl was lost to Fanconi? And if that is the case, when you get your next Basenji there is a DNA test for the Fanconi Gene as of September of this year.