In the jungle

At 5 metres your water pressure from the water tower would be 0.5 Bar less pressure losses in the pipework thereafter. I have a water tower you can have for free. It's 8 metres tall and made from concrete ???? I discontinued using it because the water pressure is feeble, power cuts here are generally less than half an hour and I don't want the liability of people working at 8 metres height on maintenance and repair. In your situation I think I would either go for a generator or buy candles and torches. Bear in mind that a generator would have particular maintainance requirements by virtue of infrequent use. Also bear in mind that if you use a generator you must not backfeed power into the electricity grid. Imagine some poor soul up a ladder trying to fix the problem and you are pumping power into the system. I went for the candles and torches option.

It's Chinese. Low quality, poor brand support, carburettor. 10K tops. Probably less.

He is 12 years old. Something second hand and cheap. At that age there is a reasonable chance it will get lost, broken or stolen. Haven't his relatives got a cast off phone somewhere? I haven't bought a new phone in the last 15 years. I use my wife's cast off phones.

I watched a vlog recently where Nico Rosberg interviewed Alain Prost. He said that one of the ways he gained a competitive advantage was by mixing compounds on his F1 cars. On certain clockwise circuits, for example, he might choose to have three medium compounds and a hard rear left. I think Alain was fairly unusual in this approach but there you go.

Is it four wheel drive? What is the vehicle? What are the tires and their sizes?

I worked in programming in the late 1970s in Burroughs Algol. The programs were entered using punch cards and debugging of programs was done in multiple 24 hour cycles. A hard disk drive (multiple disks) was about the size of a washing machine. 1MB of RAM was cutting edge stuff.

The headline figures are not real. Because the system does not work you have: Multiple applications by the same person Multiple acknowledgements and approvals to the same person. It works the same way with call centres. If they are understaffed they will say they have 100,000 callers a day. But actually they have 10,000 callers a day calling, on average, ten times to get a response. My guess is nobody knows the actual number of people approved under this process.