Contemplating nano with a sump

[asylumdown]

So I just broke down my 90 and am left with one tiny little 20 until the new house is done.

Of course, I'm already dreaming up ways to spend the money I'll save without the big tank.

I like the 20, and it's all I can have in this space until the new house is done, but I'm lazy and don't want to be daily diligent about testing and dosing water in such a small volume yet still want to have something with a hard skeleton in it.

I've now got a profilux auto doser sitting in a box doing nothing, and a tunze auto-top off system that is keeping a ziploc bag company, so I was thinking what better way to put them to good use then to use them on the 20... but I can't be setting up any more hack job aquariums - it would need to be a nice stand, nice glass, and no tubes, wires, or hoses dangling all over the place - this will require an in cabinet sump.

has anyone here ever played with modding a JBJ nano cube to drain to a sump? Is the glass tempered or is it drillable? I love the look of them, but there's no way to plumb an auto-top off or dosing system to it out of the box without it ruining the whole point.