Do you know how much the V6 engine weighs? I have to pull mine to replace the lower crankcase O-ring. I have been unable to borrow or rent an engine stand. It looks like I will have to buy one. Harbor Freight sells two sizes. Can I get by with the 1/2 ton or do I need the 1 ton? They also sell a load leveler for the engine hoist. Is that worth having?