I love bird watching but the local cats were feasting on my little friends and I got the idea on building this pen. It was one of my better ideas in life and the cats all gave up pretty quick. It took me about 30 mins to 40 mins to put it together. With the cost of renting a post pounder from Cowichan Rentals it cost me around $100. Including materials . And to rent the post pounder for 1/2 a day it costs $10. It doesn’t come with the feeders, I gave those to my best friend. If you want the binoculars you can have the works for $50.