I'm considering buying a Mono bag but am having a hard time getting a feel for the pocket situation. Ideally I'd like to be able to fit a small Class D Amp (Eden WTX 260), 2 cables, strap and a tuner. Any additional storage would for books would be great but not my top concern. Would either the Vertigo or Sleeve be able to accommodate all of those items? I suppose the amp would be the biggest obstacle. I'm chasing a one trip in and out situation for my worship gig. All bets are off on other dates.