some people seem to think "i use the 85mm f1.2 and the portrait will be great".
I agree with this assessment. While shallow DOF can be a great tool, it can also be a great crutch. One of the reasons f1.2 looks so "amazing" is because it's just not how we see the world, thereby making it rare and exciting. If all the photos in the world were taken at f1.2, nobody would even be talking about it. It will definitely enhance an already great picture, but sadly many amateurs equate shallow DOF with great image. And even sadder, a lot of customers buy into that philosophy.
A great secret sauce enhances an already terrific soup. It doesn't make a poisonous bowl of sludge suddenly edible and nutritious.
Hope the OP gets his dream lens soon!