Susan's basic proportions, although obviously dependent on some of the zaftig settings provided by the Morphs++ package, are otherwise remarkably straightforward V4 scaling tweaks. Overall scale, 90%; hip, 102%; thighs, 87.5%; shins, 91.5%; abdomen, 90%; upper arms, 87%; forearms, 95%. Using Morphs++ again, her head was scaled up by 4 percent, while her feet and hands were scaled down by 2 percent and 4 percent, respectively. If you want to stick with freebies, Les Bentley's "Show Scale Dials V4" should provide what you need. (Just be sure to read his excellent notes.)
Hair and textures are as credited in their respective original appearances. Although I did expand the bun on Magenta's hair, given the Big Hair proclivities of her companions here...