go west 1 state and u can geter at any store
the still i know of has a 3 in. copper header to a 1 in. copper coil in 55 gal drum, runs real smooth whisky.never used anything but Copper for the boiler, header and coil!
everyone wants a room like that one ,the get it water/weather proof! don't need flooded streets draining into your grow shouldnt flood u out ( sump pumps for backup)in case of flood.
i buy cheap flat bungee cords for the hooks to hange over the frame of the tent ,then swing light from light weight chain to lowest point you will ever want then add ratchet straps( beware the rope degrades with light exposure).
impressed with the tomato farm ,the old man who used to grow upwards (never saw plastic in one of his grows) of 60 acres till he and his wife got in bad health, miss that old fart!