sc aquarium. It is where I got my tank but they also do custom tank sizes as well so you can get exactly what you want.
SC Aquariums does some nice work. They also sell pre-built tanks with nice stands and canopies for good prices (considering it's ultra-clear glass). That said, there's also the Red Sea MAX 250C, which has an enclosed hood to match. It's the same 250 liters/60-something gallons as the REEFER 250, but its an all-in-one which you didn't want. And I don't know how good the protein skimmer (or any of the other equioment) is, although I'm a disciple of the T5 gods and the MAX C-Series has that going for it.
If I was going that size of tank I would want the sump. Opens up a ton of options and given the narrow footprint you have you will want that space for aquascape in the tank.
Prices rise dramatically when you start to get into the custom guys compared to those of Elos and such. I went with SC since my current tank is not my final and I couldn't see spending the coin on reef savvy or reefomania tanks when I would not have it for long.
Tim - Feel free to run ideas by me or we can hit up a local bar to chat for a bit if you wish. I probably have some spare things sitting around to aid in the transfer ro can spout off in depth about my issues and things I would do over. It is really that foot print issue you have that stumps me. It limits production tanks by a lot and for what you are looking for probably drives you more towards custom.
Should also note if you are around in June that Reefapalooza is up in NYC. You could probably snag some manufactorer deals there. It's much smaller then MACNA but I found more deals there then at MACNA...
Custom in most cases for what you need would be close to the red sea price (except SC) for the tank. But then you would still need stand, sump, equipment, ect.
To ball park it for you. My 150 was 1800 for the tank, stand, and canopy. Nothing custom about it. My sump, plumbing, skimmer, pumps, and such were an additional say 1000.
I had looked into reef savvy (as you remember as you were there for my initial talks) and I would have been looking at close to 4-5K for the tank and stand.
You also have to account for the plumbing. IE if you do a rear overflow like Reef Savvy typically does or the synergy one then you need to add a couple inches to the back of the tank space for the plumbing. If you do bottom drains then you lose real estate within the tank. With only 20" deep or so i am not sure which is best option. You could probably do a 36x18x22 or something without much issue as that would be thin enough to allow the plumbing on the back side.
And dont go talking about not being lucky with values and such Mr I won an apex gold at MACNA....
What you should do is have a hole cut into the pergo the size of a floor grate so you can cover it later without having to redo the floor...
money from a used biocube... Now that right there is funny. For the amount you get out of it 2-300 tops you are better off keeping it as a QT tank. So you basically sell your all in one functioning QT tank for the cost of a light for the QT tank...