LLC part hardware requirement for 24V,10A using STNRG012

Hii everyone,

I am  designing  AC-DC board using STNRG012 IC and  used EVL012LED evaluation board for reference purpose and we are facing some  isuess
1. We design input voltage range from 90-305VAC.

2. PFC boost voltage range would be 450V.
so which parameter need to be consider while designing for this PFC range .
3.Is there similar standard core available for PQ3812 but in your document you mention it NH9 material and in datasheet there no AL value for this core so is there any another simliar core available for it.
4.Also want guidance related LLC section because  my output voltage is 24V 10A  or any reference circuit for it .