First time poster. This is my bottle tree, 6 bottles per tier, room for growth, very sturdy. Made from SS and Aluminum T-Slot bars (80/20). Only modification I would make would be to bend the stakes to a 60° instead of a 45°. Enjoy.
Most of it was stuff I already had. Probably $20 in t-slot material (~4ft). Then salvaged SS drops probably would have cost $60-80. Hardware, no more than $10.