That's a pretty expensive list of gear to turn your cross-over or SUV into a camper. Wouldn't it just be cheaper to buy a used Class-C RV? Possibly. You could also do this for 1/3rd the costs if you weren't so hell bent on recreating comforts of home. The main issue is power, shower, and cooking. For power, solar panels etc are a good option. Many SUV/X-overs now have outlets you could use in exchange for gas costs. Shower, well there's nature and then there's trucker stops here in the US that have public showers you can use. Cooking, a small 2 burner electrical stovetop will run you about $300. You'll need a battery bank to run it though. You can also use sterno-based camping cookery for 1/10th that but you need to keep buying fuel.