Hello everyone,
The post title sums us up rather well, but if y’all are like us, you’ll want details;)

Details
We’re looking to add a Basenji to our family. We have a Havanese pup now, will be adding a cat soon, and a Basenji in about two years when the Havanese and the cat are adults. Our reasoning is that a Basenji pup is more likely to assimilate other adult pets into its pack. And we’re largely here to learn from all the insight and advice you guys have for us.
We’re taking out Havanese to be patient and will be doing our research and adopting a mellow cat breed. We want to set up all of our furry family members for success. And that’s we’re here a couple of years early to ensure our Basenji has the best chance with us and so that we are as prepared for it as we can be.
Cheers.

You're looking at two ends of the "toughness" spectrum. Seems like a good call to get the Basenji second. The big issue might be getting used to a dog who will bolt after one who won't.

I am not sure what you mean by two ends Of the toughness spectrum. Can you please say more?

One of my pups lived many long years with a couple of Havanese in Finland. They all got along fine. The Basenji was 'last in' to the pack. Good luck !

Thank you.