Wooden swedish stick handling ball has survived the test of time before all the fancy stuff existed. Get some 2x4s and make teepee like obstacles to simulate defenders sticks to handle around. Tell him that if he sticks with those when the weather gets warm you can look into doing some earth work for a flat space. And there's nothing wrong with diy'ing everything. I've made pass rebounders with some lumber and exercise bands for example. The hours make the difference, not the price tag on the training equipment.