I think the materials would be closer to about $1,200 and it would take about 3 days to build. I think the labor would be no more than $1,000, for a total of about $2,200, if it is built of all pressure treated pine with 4x6 rectangular posts. Just a quick estimate, of course. You could set the posts with a hand post hole digger and a tamping bar. It might help to have some gravel with the fines left in (SB-2) to put in the holes around the posts.
