I would just pay to have a cement truck come out and poor 4 inches of reinforced concrete on the steep slope areas. Most concrete companies will deliver a minimum of 4 yards in our area for a cost of about 260$. I like Bobads idea, I think I might try that myself but I think it would be a waist on a 45 degree slope as you have discribed. A 4in thick 6ft wide x 50 ft long slab is about 4.5 yds of concrete. Reality with rebar and the beer you have to buy your buddies to come help is going to run you about 350$ to 400$


The road goes on forever and the party nevers end...............................................