Here is a proposal for building awnshegh. It is what fiftyone used to build The Spider that he posted on the general discussion boards. Basically it uses the Unearthed Arcana Bloodline model. Instead of having 'empty' classes to account for the LA buildup of the progression these are the points where the 'physical transformations' occur and the character gains an additional LA because of it.

See download in later post. This one was an earlier version that was 'mising' some things.