Hydra Fan Duct one piece for Ender 3

I wanted all the advantages of the Hydra Fan Duct & Tool system but wanted a one-piece like the Hero Me. Version 1: "Hydra_1pc_all_press_in_nuts.stl" uses (8) M3x5x5mm Metric Threaded Brass Knurl Round Insert Nuts Version 2: The "Hydra_1pc_fan_w_press_in_nuts.stl" uses (4) M3x5x5mm Metric Threaded Brass Knurl Round Insert Nuts and (4) M3 Nylocs Version 3: The "Hydra_1pc_with_screw_in_nuts.stl" uses (4) M3 Nylocs and (4) M3 Hex Socket Screw Insert nuts