Check this out:

You can use the MEA+ command in that to establish your curved edges.  I would recommend offsetting a temporary center-line-of-the-bricks-along-the-edge route, and using either a rectangular Block defined with its midpoint as the insertion, or if you don't want the double lines at the joints at small scale (see image), you can use just a Line with its midpoint as the reference location for placing them along the route.  Unlike regular Measure, MEA+ lets you place a User selection [the Line if that's what you choose] in addition to the Points and Blocks options, and lets you specify any angle Relative to the route, not just 0 or Aligned, so if you use a Block orthogonally defined, you would presumably use it at 0 or 90 degrees relative to the route, depending on how the Block's definition is oriented and whether you want a soldier-course or running-course edge.  MEA+ and its companion DIV+ command also have many other enhancements over ordinary Measure and Divide.