Many vendors ignore the body when making custom shapes because for a long time it was difficult to fit clothing to new body shapes and so it was not an important selling feature for content. Since many artists don't like to change their habits, this means that they don't think user's want custom bodies.

However custom body shape are no longer an issue. DAZ built autofitting in their program for their native figures for this reason. However newer versions of Poser have the morph transfer tool which does the same thing with more control and does very nicely in most cases (Heavy is generally a lost cause). If you have an older version of poser the utility 'morphing clothes' also transfers morph shapes into clothing. All three options take about 15 seconds or less.

So .. you should try emailing the vendor and nicely asking for custom body options for their figures. If the vendors know you will buy character X if there is also a custom body for it, they are more likely to make it. I stress, ask NICELY. Artists are delicate creatures.

LM