I think you are making a mistake not at least considering the Rallye 3. It doesn't comply with your requirements that it have no waterproof liners, but the idea of liners is to maintain the waterproof nature of the suit despite a fall, and the liners enable you to layer (or not) depending on the temps.
BMW gear is expensive, but I think you get a lot of value for your money. Its not the most expensive, but I don't see how the more expensive stuff is really any better.
It also stands to reason that their gear be high quality and high value, as BMW has the money for R+D, and the volume to better control price.