Ok, you see Alicia Autotopoff.com is the way to go.
You need this setup (with 1" Sump Mounting Bracket (fits tank thickness between .25" and 1") about $50, not bad.
I believe I had this on my old setup but I used a magnet to hold all in place, this bracket will work perfect too.
Although it need some cleaning once a while as Mark mentioned.
Tunze is a bit different and really that is set and forget, only thing that's left is to make sure that you fill you RO/DI 5 gallon jug every week.
Yours should last you about two weeks.
Not really necessary next weekend as we start cycling your tank.
PS: I would jump on that skimmer I send you a pm on.
Pump is the same gallon you have now, you can get that too cause it's just a better pump that brings less heat in your water as the one you have now.