Other than a lot of sweat, I have zero cost in the bench itself. The glue and hardware used, I had on hand. It was a lot of work and planning to be able to make it with the salvaged lumber, but I am very happy with it. I did, however, invest in a new vise. I went with the 10″ Eclipse with quick release. The vise cost me about $160.
Thanks guys, I put it to work today, I really like the vise. I made it 39″ tall, knowing I could cut down the legs an inch at a time till I get to the perfect height. So far I am very comfortable with the 39″.