Some advice please.
Booked with QF dep CDG later this century.
My prob is I will have a 15" laptop weighing 5kg, accesories 3kg, Laptop carrybag 2kg.
What is the best way to approach QF (French?)check-in staff with this monster (weight wise)? to get in to the cabin with me, the volume is quite small.... more like a small rucksack with a handle.
I'm flying Zoo class so I know my allowance is only 20kg in total.
This is my 1st flt with QF.

As you can imagine I'd not be too keen to put £3000 worth of toys in the hold.
Any suggestions welcome.
BTW how much would unacompanied luggage costs be (roughly) to Sinney from Paris (for main baggage)?
regards,
Staines