Parts from Home Depot costs: $63.41 after tax You could probably do it a little cheaper but I went as heavy duty as I thought I could get away with. The pics aren't the best because I have a crappy camera and I was outside at night. But here they are anyway. I used a 160 lb spring, the biggest they had. I fabricated the pulley set-up. I bought 2 awning pulleys and grinded the rivet off so I would have just the "wheel" part. I took some flat stock and cut to size and mounted the 2 "wheels" in it. I used 1/4" cable with the coating on it. 3 clamps on each end with thimbles. 5/16" chain and quick links. Galvanized fence post for spring housing. Spots of it are in primer right now awaiting the finish coats of black. The cable does rub the corner a little bit when the gate is down. I will probably get a pulley and install it recessed in the corner. I'll figure something out. It works pretty good. I can't lift the gate with one finger like they show in the ads of all the retail lifts. But I can easily lift and lower with one hand and it will definitely be a back saver. Lots better than spending 3 times as much for one!!