They have never heard or seen such shops in Punta Cana. Dominicans usually bring rum, cigars and coffee. But not equipment.

You can buy it, but it will not be the most profitable purchase. It is best to consult your guide at the hotel, he will tell you exactly where and what you can buy. I think that there is an opportunity to purchase equipment in the shopping complex next to the Melia Caribe Tropical and Paradisus Palma Real hotels