No wall— Answer

Answer
25 billion dollars for the southern boarder! Money would be spent on 5,000 Drones, 1,000 Flir camera towers, 10,000 ground sensors, 300 helicopters, 500 shallow bottom boats to patrol the river, 50 interment camps, spaced out along the whole boarder, with Federal court systems in place, hiring 500 new immigration judges and adding 50,000 new boarder agents.
Create new smuggling law with mandatory life for anyone caught bringing in drugs or children in to the Country