This little project of mine cost me only around 90 pounds (112 dollars). Once I got all the materials I needed for the bar, the actual building part was fairly quick — it took me only a couple days, from start to finish. I got most of the materials I needed all for free: the pallets and crates cost absolutely nothing. However, I did need to spend some money on the roof (that was around 40 pounds or 50 dollars), the paint (around 30 pounds; 37 dollars), and some odds and ends. A good mate of mine owns a pub, so he gave me some beer mats and other things for free.
Some plants would be nice. And a couch. I am more the couch-type than the party-type.