I'm so sorry to hear the news about OJ :( May he RIP & may he live free over rainbow bridge, shredding paper, eating through the grabage can, chewing everything & anything he can find, & running his little heart out.
I so sorry for your loss. It is never easy losing one of our beloved pets. If you are on Reddit, there is a subreddit where you can request portraits of your pets that have passed on. Maybe you can have one created with both of your beloved Basenjis. https://www.reddit.com/r/RainbowBridgeBabies/comments/b21pu0/how_to_request_and_about_us/