Thanks for the info Patty and crystalncody! Very much appreciated.
The fence that you can't see in my photo is behind the garage. It is a four foot chain-link and on the other side there lives 5 Dachshunds. If needed we will construct something new…we just took advantage of the neighbor's fence that was already there to save a little money. I definately want to put up fence rollers...and I can totally make them myself. My husband thinks it's a good idea too.
As for chewing...It looks like crating is in the cards when we are not around for sure.
I've talked to a breeder that lives about 3 hours away from me...her name is Laura Mae Hesse. I am trying to arrange a phone call with her. She told me that 2 of her Basenjis are homed just 20 minutes away from where I live. So I'm hoping the owners will let us come out for a visit.
Thanks again everyone for your advice.