Hey Folks! Picking up an Aire Lion 16' this spring. Dreaming about the frame... To anyone who has one, how wide is the actual storage between tubes? Not the total width of the frame, but the width into which one can cram coolers, dry boxes, drop box, rocket boxes, water containers, etc.? I'm thinking of going as big as 44", but am a bit worried that might make for too much girth. The NRS Fat Cat frame is at 37", but I don't think that'll do what I want. What's the use of them big tubes if I can't carry a lot of stuff? Advice from the more experienced--which is to say all of you--would be greatly appreciated. Thanks!