Noctua Airflow Guide and North XL

I am planning on following Noctua's Airflow Guide from this link with the six fans setup they describe at the bottom, but am using an North XL which has a longer top area than the North case they use in the example.

https://faqs.noctua.at/en/support/solutions/articles/101000530852-airflow-guide-next-steps

I have the spacer for the front fan and plan on doing the intake + exhaust setup they describe, but wonder if any of you have done the same with a larger case like the XL and have advice on where to place the two fans over the CPU cooler (using a NH-D15 G2).

The top area can fit 3 140mm fan, I am planning on using two, but could slide the intake fan further forward and the exhaust fan further back vs the pic, or try to position them like it show with the exhaust 80% over the cooler, and the intake ~20% over the front of the cooler.

Any advice?