Is this a good deal?

Another option is to swap out the first business leg for first class. But to do this I would need to swap the returning business leg to economy. If I did that it would save $500AUD and 15k pts.

Any thoughts?

Another option is to swap out the first business leg for first class. But to do this I would need to swap the returning business leg to economy. If I did that it would save $500AUD and 15k pts.

Any thoughts?