You're right I do not think any MSW Advance Standing will take you without a BSW.
Although I did not apply to this school, a couple of my cohort mates did- they haven't heard back though http://socialwork.wnmu.edu/msw/. Their standards are not so competitive, and from the looks of it no campus visits are required. Another school I have seen that is fully online is http://www.campbellsville.edu/msw,
Unfortunately I do not know of anyone who has actually attended either program.