  Here we present new measurements of effective radii, surface brightnesses and
internal velocity dispersions for 23 isolated early-type galaxies. The
photometric properties are derived from new multi-colour imaging of 10
galaxies, whereas the central kinematics for 7 galaxies are taken from
forthcoming work by Hau & Forbes. These are supplemented with data from the
literature. We reproduce the colour-magnitude and Kormendy relations and
strengthen the result of Paper I that isolated galaxies follow the same
photometric relations as galaxies in high density environments. We also find
that some isolated galaxies reveal fine structure indicative of a recent merger
while others appear undisturbed. We examine the Fundamental Plane in both
traditional R_e, mu_e and sigma space and also kappa-space. Most isolated
galaxies follow the same Fundamental Plane tilt and scatter for galaxies in
high density environments. However, a few galaxies notably deviate from the
plane in the sense of having smaller M/L ratios. This can be understood in
terms of their younger stellar populations, which are presumably induced by a
gaseous merger. Overall, isolated galaxies have similar properties to those in
roups and clusters with a slight enhancement in the frequency of recent
mergers/interactions.
