Kaitelyn, while I understand the point you are trying to make, the typology of Harry Benjamin is fairly clearly circumscribed. There are certain conditions that must be met to be a Type 6 or 5 transsexual, and it requires "the request for a conversion operation is typical only for the transsexual and can actually serve as definition." He then classifies those that request but not require "conversion operation" as Type 4 transsexuals. Type 5 are those that require the surgery but have it later in life, because the intensity of the need is less and a life can be maintained for a period without the surgery. Type 6 transsexuals are those that have their surgery early (latest in their 20s) or commit suicide.
Type 1-4 were considered by Benjamin as not transsexual, with Type 4 being borderline if the intensity is on the higher side. It is not uncommon that Type 4 can have the operation but often end up socially not being able to maintain a life.
He did not consider transsexuality as a mental disorder. In fact the paper by Pauly in which he developed the concept of complete psycho-sexual inversion makes it clear that Pauly and Benjamin believed that there was an underlying organic reason this. The brain sex was different. (see also Milton Diamond).