All-day off-road vehicle with train load, four-wheeler & trunk up to 7,000€ searched

Hello dear ones, I need a new car for the winter and need your help. I want to become an all-terrain vehicle with a proper four-wheeler, 1.8t train load and nice big trunk. Details: I drive 20,000km a year, 95% short distances. Once a week I have to pull horse hangers with approx. 1.5t. Up to twice a year a horse hanger with two horses with 1.8t. From time to time also a hanger with hay on the wet couple, therefore four-wheeler. A nice large trunk where Dog box & saddle fit in, are important with. Would be nice if I could drive on the car again so 100,000km. It is important to me that the car is reliable and not constantly in the workshop. My price idea is so at 7,000€. Do you have an idea? From the profile the Kia Sorrento would fit, but should the in old age be very responsive? The Honda CR-V seems to be super reliable, however the trailer load is only 1.5t and the all-wheeler should not be so It’s just like the XC-70 from Volvo (Allrad). Subaru is supposed to have problems with the clutch/gear when pulling hangers? Maybe you have some ideas. It’s important to me that the car doesn’t necessarily swallow 15l. Thank you in advance!