I have owned two vehicles in the last 27 years. A 1987 4 Runner bought new in Nov of '86, sold it with 220k miles on it (for $4,500) and went out and bought (in Nov of 2000) a 2001 4 Runner which I still drive and don't plan on selling any time soon.
Both have been great vehicles.
I used to work fabricating/installing custom interiors in exec. jets. One of my co-workers who was a brilliant man...and Korean, who, apparently also loved his Kimchi. You don't know (DON'T KNOW) what it's like working along someone in the hot Texas summer in the close confines of an airplane...
I have never seen a Visla with a black nose. Always liver. I used to have a female Ridgeback with a liver nose (it's rare but happens) and she was often mistaken for a Visla. Much smaller dog as well.
If you don't want to keep him, you might want to consider contacting the Ridgeback Rescue. He deserves more than he's apparently getting from his negligent owner.
If he has a high prey drive (which it sounds like he might), it will be a treat to watch him run down rabbits and small game....or...