I need a bit of help, I saw a neat deal up in Idaho at the horse park a while ago and I am thinking of building myself one. The horse show grounds had basically a box, on one side was a ramp and the other side was skid steer quicktach. this way you could wheel barrow manure into then the show grounds would come dump it a couple of times per day. I would like to build some of these for my ranch, I just dont know how big to make them, I would love to hear some thoughts, I have a john deere 4066r that can life a bit more than 2500 lbs, what does that equate to in wet horse manure? any ideas on volume?