Experts: Tractor wanted!!!

Hello Motor-Talk experts, the following: My company is active in the agricultural sector and needs another vehicle that is able to pull a 3.0 t cattle trailer. In order not to have to invest too much money to a G-Class, a large Landi or similar, here’s my selection: 1.) Ssang Yong Rexton 270 XDI 2.) Mitsubishi Pajero Classic 3.2l Diesel 3.) Kia Sorento 2.5l CrDI 4.) Landrover Defender 2.5 Turbodiesel 5.) Nissan Navara 6.) Nissan Pathfinder 7.) Nissan Patrol the three Nissans all with the 2.5l diesel. What would you recommend to me, which car is best suited for pulling large loads and most reliable at the same time??? Or do you have other suggestions in the price range by 30,000 Euro???? Thank you for your help!! MFG Stefan