Filter at end (side) of tank?

I've seen a few pictures of tanks used as a room divider - I like the look,
but can't figure out how I'd handle the issue of the filters, if I'm using
back-filters like the Emperor 400 - to eliminate filters on either the front
or the back side of the tank, I guess I'd have to go to a sump-type system -
or is there another alternative? If I go to a sump, would I have to drill
the tank, or is there a provision for the suction and return tubes to go
over the top of the tank at the end of the tank? Thanks for any
suggestions.