Do you remove the entire compressor and bracket (which includes the tensioner)?
You can,
If so, can you then tension the replacement belt by pivoting the power steering pump?
Yes
Also, does anyone know the part number for the replacement belt that fits once the AC is removed?
K050405 - Micro V
4050405 - Goodyear
5050405 - Dayco
If you have the stock crank pulley.