Get a seat in rows 2-4 or an emergency exit row. (Pay for it if you need.) You will be allowed to board first, and normally they should let you on with the luggage. They might ask you to put the laptop bag under the seat in front of you (if not at an exit of course), but I guess you'll survive that for such a short flight.
The problem with Vueling is for those who do not board at the beginning. At a certain point they start taking hand luggage away to put in the hold. (And no, they do not deliver it at the aircraft after landing.)