That good news, Dennis - and you are likely to find, in the long run, that the older boy will teach the pups far more than you ever can. They'll get their street cred from him !
I would suggest waiting until you get the little guy. Indi didn't have a name for abut 2 days. We had all these names in mind and none of them fit. Thats my two cents anyway (oh ya and because we did that I have a cool costume for him on haloween but I don't think I am going to get any cooperation on his end)
The only thing I would be concerned about with a Dachshund would be the possiblity of it having some back damage with the rough play of a basenji…or even trying to do the same acrobatics that Bs do. I have known some folks who had a lot of problems with disk and spine problems with Doxies...but I don't know if that is typical. Something to think about though...