how have you modded your case if all you've done is removed 3 of the 3.5" bezels? is installing a new drive a mod? I think not, so how is that any different. sure, you need to mod the screen, but that has nothing to do with the modding potential of the case itself.
And you can (shock shock horror horror) get full size towers from other sources besides Lian-Li if you need lots of space to watercool.... but you can fairly easilly fit watercooling into a normal midi tower - rad beneath the drive cages, reservoir in 2 5.25" bays - that's a fairly standard setup (not that I've watercooled myself, yet) ...