I started with the base course, elevation and got the boys rollen. 2 people, 2 days. Versa lock block, 82 pounders laid 200 blocks for a square window well. Caps on top. We had to dig 1/2 of the area out which took the longest and the first course, from there (2nd day) it went pretty fast. Do I charge these guys our hourly rate, per sq ft of wall?? Ususally I have the block, sell the block and then lay it but this time the owners took the middle man out of the equation!