I found it pretty interesting, the idea of making Lima a nourishing and regenerative food oasis is both challenging and pretty ambitious. Even though it seems as a pretty challenging task, the proposals explained in this paper seem pretty logical and could work if applied. Im my opinion, the possibility of implementing plant and animal agriculture in an small scale is and excellent strategy to fight the lack of income for the poorest population of the Peruvian city as well as becoming a source of income for them as well, is one of the most important mentioned in this paper. This is because with this initiative your are not only giving these people the natural resources they need in order to have a good quality life, but as well a form to work and sustain for themselves.
When it comes to the proposal of the water fees applied to the people who consume more than the stablished, its and idea than can easily be applied to the city's territory. Considering that most of Lima's population residence can be easily differentiated into their respective socioeconomic positions, if you implement a map that shows the different socioeconomic sectors in the city, you can easily predict which zones are going to consume more water than the stablished.
The proposal of using the great amount of fog we get specially during winter to obtain water, is an incredible proposal as well. This could be very useful specially for the population who obtain lower income in Lima since most of them live at the base or pretty near to the "lomas" which surround the capital. In the current situation, potable water is transported by trucks to these places, and it is a pretty inefficient system. With the implementation of a system to obtain water from the seasonal fog, all these zones were people of low income that don't have direct access to potable water could easily be attended. Another variant for this idea could be the implementation of the same systems but for each house. In this way, you won't have to make a water network since every house would have its own source of water. In both cases, its pretty important to mention that the fog phenomenon is only seasonal, basically only happening during fall, winter seasons. During the more warm spring and summer seasons, fog is not common. Therefore, I think that an alternative solution needs to be elaborated for obtaining water during the season where the fog is going to be absent.
As well, the consideration of implementing gondolas in Lima can be achieved. As you already mentioned, many cities in Latin America have them operating, meaning that they are already proven as an efficient transportation method. In the case of Lima, I think it hasn't still been implemented because of two reasons, the informal transportation system and the fact that most of the poorer population of the city live as I said before, at the base or near the surrounding "lomas". Since this population of the city has always been left unattended, an efficient and formal transportation medium has never been considered for them. Therefore, installing gondolas as transportation systems would help a lot for people to have a more efficient, safe and faster way of transportation specially for the inhabitants of this remote zones of the city. Gondolas could drastically reduce the time taken for these people to commute to their respective working centers by probably one hour or even more.
To conclude, I want to congratulate the authors of this initiative and as an actual resident of Lima, I hope that all this ideas proposed become a reality in a not so distant future (2035). It may seem a real challenge to make a man made oasis out a desert. However, as we already know, when Pizarro first discovered Lima, it was already man made oasis by the civilizations that inhabited the zone in the time.