Camper will have generator and AC. As well as solar to run the AC during the day.
Cassette toilets can be emptied at any petrol station just flush the cassette contents in the toilet.
Im talking about campercan here not big RV.
Im looking to modify one of these, with more solar panels for daytime AC and attached diesel generator (or propane generator). Apparently you need 4 litres of diesel for overnight AC, and a 800W solar system with inverter can power the AC during the day.
https://www.avengerbox.com
I know you can stay in cheap resorts for 500b a night but the point of camping is to get totally away from civilization and absorbed in nature.