Yeah unfortunately those holes aren't the right ones. Take a look at this:
Bottom of the Alps switch with the legs
PCB
See how the holes on the PCB and the legs are slightly different on the "complicated" or SKCL/SKCM Complicated Green Alps versus the SMK "Monterey Blues" that you have?
Like FrostyToast said, you'll have to find SMK Alps-mount switches you do like.