Nice work - I am going to do something similar except since I only have 1 sled, I will mount the front of the ramp to the wall then use some pulleys and my ATV winch to drag the sled up the ramp. That is after I remove the ski's and put some Home Cheapo Wheels in place ;) Then once it is up, I will use my engine hoist to support the upper pulley for my winch line and pull up the tail - Then I will put a brace under it.
