A little update:
Today I got to talk to the aquarium manufacturer and we discussed
how I want my new tank to be.
So the display tank will be:
200cm long, 70cm deep and 60 cm high.
The glass will be 10mm thick.
The overflowbox will be in the center of the left side(thanks
again for the tip Scott)
Because of the large amount of tank builds they have to do,
the tank will be ready around march till may.
Also I decided to go with dry rock rather than LR.
It's true that you have some advantages using LR,
but I don't want to have all the bad things and hitchhikers
they might bring.
So I'm gonna seed the dry rock with some of the LR out of
my current tank, of which I know is "clean".
That way at least the biology gets a kickstart.
Also there will be some LR in the fuge.
Today I ordered some livestock which I will collect in my current
tank and then transfer to the new one next year

Some awesome SPS frags, made it into my shopping card.
I'll post pics as soon as those horrible phone company technicians
fix the problem with the Internet I got.
I also found a skimmer that sounds very promising and
seems to fit my needs.
It's this bad boy:
http://www.whitecorals.com/shop/de/Technik-und-Zubehoer/Abschaeumer/ZEN-COMPACT-CONE-160.html
Sorry but they don't have an english description for this product.
It is suitable for tanks up to 1200l and made for external and
internal use.
Christmas comes soon
Next Friday there will be a holiday so I asked my godfather
to come over to my house to start work in the basement,
to make it a fish room.
I'm getting excited
Do you guys think I will need a dehumidifier in the room to
fight humidity or should I be fine concerning the
amount of evaporating water from the tanks?
Best wishes
Mathias