+1 on Jim's idea. I've never seen a case for them. I've got the big Triton and as I, too, have it mounted in my table, it's never bothered me. If it's any consolation, while Dewalt supplied one with my DW625, I don't rate it very highly. The ones with my Ryobi and MacAllister are much better. The DeWalt one holds the router well enough, but there is no provision for the accessories and they just rattle round in the box. It is ironic that the cheap routers come better boxed than the good ones!
Cheers
Peter