I can pack in all the required farming equipment needed for a 2 acre land in under $20,000 in India (including a good tractor!). And I get to chose what I want.
$50,000-$60,000 is a STEEP price tag to suggest to African farmers I assume! And then there would be a maintenance costs.
These are just two of the field tested equipments that work (with spare parts available throught the Indian market at least) and are available with many options - https://www.mahindratractor.com/ http://www.jains.com/irrigation/drip%20irrigation%20system.h...