Does anyone know of a site or have the plans to make a good portable shooting bench. I would like to make it out of mostly wood and be light enough to throw in the back of the truck to drive up in the mountains and shoot. Rifle range here gets way to busy at times and I don't have the money to buy a fancy store bought one. I have a sled to use and could probably figure it out on my own but was hoping for some plans to go off of. Thanks.