About LT240 cooling, I got Nf-A12x25(new) and nf-a12x15 with Noctua secufirm.
9600k (w/o delliding), 100% pump and fans.
210w- getting near 100c
If it will be in case and getting hot air from GPU I think 9600k will be near 100c already with 190-200w.
150w / 50% fans - 75c.