I would recommend against it unless you get some BB separtely to add to it to help hold the 1-T cyp in the solution. I'm in the same boat, I'm only mixing my 4AD cyp until I get some BB. Maybe I'm being overly cautious, but with all the painful 1 T cyp injection stories, I'm not going to jump in with that until I have BA and BB and then I'll be using Sldge's recipe that he released after he sold his last batch of premade 1T cyp.
If you do try it with only the BA, let us know how it works.