Hi, I am doing some landscaping, and my wife wants to add on to our patio. The part she wants to add onto is a little slope part and is 10.5'x10.5'. She wants to make one edge of it curved (no right angle). I know it is going to take 1 full pickup load of gravel for backfill. I have gotten a couple of estimates because I don't want to do it myself, and the cheapest price I have found is $1,000. Doesn't that seem high for like 1.5-2 yards of concrete? I mean, I know $250 is going towards delivery since I'm not getting 5 yards of concrete, and about $150 towards the actual concrete. Is labor usually $600 for a small job like this?