Why not just save yourself some money and make the whole thing from scratch and then pick up the equiptment from ebay? I am personally gunna make a tank soon that is 5x2x2 (I would go bigger but space is an issue) and it shouldn't cost me more than 200 bucks AU to make the tank and stand (this is a generous figure, I estimate it to be around 100-150, but you know how it goes, always pays to overcompensate). To buy a tank and stand that size over here would cost alot more and I'm guessing it'd be similar over there. The best thing is you can make the tank exactly how you like (adding refugium, overflow, etc to it if you wish) and you can make the stand as sturdy as you like in case you're worried about weight.