Small caravan or pick-up

Hello together. In the area I am a beginner and since I want to change soon but professionally I need your help in the decision making because you have more experience. The following requirements should be met: The number of persons and the space would be predominantly for 1 Peson and it should be used as a sleeping place for 2-3 days a week. Furthermore I would need a small cooking unit for smaller meals as well as a small fridge. A toilet so a shower is not needed because I can use it on work. A heater would also be important. Occasionally I would like to use the team also in winter for the ski holiday so that a camper is already out of line because I do not want to do without on four-wheel drive. I have to get a new car anyway and ask myself now what would be more meaningful for my needs. 1. A pick-up with housing structure or 2. A normal car and in addition a small living car In particular, I have to change a pick-up to a truck tax and maintain two vehicles in the normal car (PKW+WoWa). I am also open about the space available via reports and suggestions. PS: As a note. I own driving licence class B and the bugdet should be around 10,000 euros. Thanks already and found in the forum no topic of the kind.