My boy just bought this messenger bag:
(he has it in black, I think it looks hella dope)
We all know the 2000xl is too wide for a record bag, but it fits perfectly in this messenger bag. It's waterproof and has some extra space for cables/disks. I was thinking to just get some 1 inch thick foam to make liner for the bag. It won't be enough protection for, say, check-in luggage, but it would be perfect for taking the MPC to a friend's house by bike/car/train...