Jim,,, I have a tamrac expedition 3 that I use in the tool box on mine,, I keep the 100-400 on my camera, have filters and my 17-35 and 28-105 in the case too. Figure that is all I need,, The tamrac is padded so no extra needed, I just keep the case open so I can pop the top on the tool box and grab the camera. One of these days I might take a trip to Portland and see if any of the big dealers there have silencers.. Actually the exhaust doesn't seem to be too noisy but get a lot of noise from the motor itself.
Our Grandson lives with us, (11 yrs old) so the extra seat works out fine here. DAve