You should bleed all 4 corners, furthest from the Master Cylinder first.

Now, depending on how the kit is installed, you might find that the bleed nipples are not at the tops of the calipers. They must be the highest point when bleeding as the air will get trapped otherwise, so you may have to unbolt the caliper and swing it up to bleed. If you do this and it is clear of the disc, put a block of wood or something between the caliper to stop the piston popping out.

Also, should be done with the wheels on the ground to open the load valves.