Hey mate. I got the tank/hood/stand from aquariumsrus. They don't paint or make cabinets like this, so I got the basic stand and then some MDF from Bunnings and did the doors myself. If you have a chat to them and tell them what you are planning, they actually modify the stand to suit flush panels like this. I ended up painting it myself, just got some 2pac paint from dulux. I couldn't find anywhere that make this style that doesn't cost a fortune (or at all for that matter), so decided to DIY it.
If you want to go down that path let me know and I can give you some more info, or any other questions don't hesitate to ask. Cheers