TubeNet

This might help: http://www.soundwear.com/shopengl/infos ... A_TABD.htm

Or, you could try Dolly Bags--it'll almost surely be a custom job. I agree that keeping bell and body together is the way to go: one less thing to carry!
Good luck!

Try Glenn Cronkhite. 510-527-4490 He started Reunion Blues back when and he still makes bags. He is great to deal with and does great work.
Good luck, Phil