When I rent a car at the Airport of Lisbon, how much I have to pay for border crossing to Spain?
There is no crossborder charge. To check look here:-
To view the CROSS BORDER terms and conditions: At STEP2 of our 3 step online booking process, alongside the car photo of your choice, there is a link entitled “IMPORTANT INFORMATION”. Clicking on this link will open an additional smaller window, with the terms and conditions appertaining to that particular car/supplier. Choose then the "CAR" tab and look under "TRAVEL RESTRICTIONS".
Try a few different suppliers as each supplier/vehicle type may have a different cross border rule.
And pick up is in terminal?
Yes, car rental desk is at the Arrivals Terminal. Car pick up at the Airport parking.