You will not be able to create a buffer without the help of a library. I'm not deeply familiar with this library. Are you sure that it doesn't provide a way to get such buffer?
Sorry, it looks like I skipped glBufferData and glBufferSubData when transforming Buffers to Short arrays which Basic4android knows about. I'll look at it tomorrow once I've refreshed my memory as I haven't touched this library for 20 months and it's all gone a bit dim