I wish you good luck. I wish i knew more about your weeds and could spend a few days looking at abandoned places.
What grows there shows the way the ecology works.
Here its thorny Zizyphus, Acacia, Lantana, Jatropha, Calotropis, Myoporum and others.
If these reclaim the site first then its easier to chop and drop them using them to nurse back original forests.
Have you tried Tagasaste?
It can be direct drilled after scarification. It suits the meditteranean area and rocky hills very well.
You can also raise in beds and transplant the seedlings direct into location at the start of the rainy season.
I hope you find a method to reforest like this above you, as the benefits are great for soil, water and wildlife