Electronics:
TC1 on 7 and TC2 on 2 feels best for me. TC1 on 8 is an option if you need more interference during slides.

Adjustments (in that order)

• play with steer ratio to your liking. Put it higher to reduce sensitivity and response
• reduce caster if the rear remains tricky during weight transfers
• if the long right entry remains tricky, increase front roll bar
• +1 wing might be a solution if the rear remains hard to control
• brake bias forward for high fuel loads potentially

Driving

• due to low downfroce the car needs careful trailing, else the rear will step out. The brake controls the rake under deceleration and with that the balance shift to the nose. 
• avoid right kerb in first chicane (Turn 2). Stay full throttle in 2nd until the rear wants to step out during turn in, then short shift to 3rd.
• prepare the long straight, use a lot of kerb in the last left kink to avoid a TC cut

LFM
Just reduce fuel load to 45/49L. Balance should become even more neutral. Adjust rear ride height +-1mm to your liking.