Assuming nobody is being conned[staying positive],let your cousin find a prime location in Nairobi[CBD] and build those multi-storey,fully-automated parking towers. The driver leaves the car in an entrance module. It is then transported up to a parking slot by a robot trolley. For the driver,the process of parking is reduced to leaving the car inside an entrance module. Building the structure won't be that costly,the whole robotic mechanism will.It doesn't need lighting[at the parking bays],no need for ventilation/air condition and you can charge per minute.You need one person per shift,to monitor a single tower. That's my take.
when i see my purple, you see it not!