Hi Knuckles,
Sorry about my earlier platform response; I didn't read your original post carefully enough. Is it the pole system that makes your tent so long when bundled? If so maybe there is a way to make hay by packing them separately. It might be possible to have them "customized" to be a shorter bundle. Check with TentPole Technologies in PortlandOR.
You could also rework an existing rack, like a Nitto, Surly or Tubus, by having someone braze or tig on guides for straps and/or a shelf to allow you to mount your tent to one side. Then have it powder coated.
Tom