Tyre recommendation and air pressure 205/50/R17

Good morning, I drive a Ford Mondeo TDCi year 2004, this needs new tyres in the dimension 205/50/R17 89V or 93W. The tire is gently driven, without squeaking tires, rapid braking maneuvers or sudden change of direction. (From the old I am out The only high requirement is that the tires get along well with a caravan and that it is not straight again with a mileage of > 40 Tkm every year. Fuel saving it can also be even more intensive. I’ve already finished: – Goodyear EfficientGrip Performance – Bridgestone Turanza T001 – Dunlop Sport Bluresponse Can you recommend one of these tires or advise me not to? You can also recommend other tires, so not only on the 3 of me mentioned. Currently I drive with Uniroyal Rainsport 3 in 205 / 50 R17 91V XL. This tire is already 6 years old. I moved the tires on weekend 800 km with caravan and kept myself to the air pressure of Ford n: VA loaded 2.3 bar, HA 2.8 bar. Now the tyre flanks on the holiday trip have been quite worn out – probably false air pressure. The tyres tolerate a filling pressure of up to 51 psi. Do I now have to pump up a filling pressure of about 3.4 or 3.5 bar to withstand the load of the trailer? I have never had XL mature before. The WW weighs only 1040 KG and had a support load of 75 kg. Thank you for your help!