It is definitely either a phantom or a B6. Really the only differences are chrome fenders on the phantom, painted on the b6,
Both had different paint schemes and the seats were different. This bike has a phantom seat. Does not necessarily mean it's a phantom, as it could have been changed at some point.
It's hard to tell what's going on there with so many layers of paint, but the red and white does not look like the original paint to me.
I see some green in there, is it possible that might be the original paint? It's hard to tell from the pics. The combination of green paint, green grips and phantom seat makes me think it could be a green phantom.
Looks like it's all there so it's a good starting point for a project.
Edit: I thought that looked like a schwinn grip when I was looking at it on my phone. Now that I'm looking at it on the computer, it looks like it may not be a schwinn grip.