Was thinking no taps, tray, and $10 tubing, spray bar is just a 20c piece of plastic with holes in it. Media and power head would be the big costs. Reason I was posting this was for larger tanks, where a sump wasn't desired but a large media area was. So even if it cost $300, it'd still be a bargin. The new Aquis filters have made larger capacity externals a bit more in reach though.
Our tank is only 650 litres, so we've wimped out and opted to purchase an Aquis 2400 to add to the setup. A Fluval FX5 would be ideal, but it's just too expensive. Tank currently has 2 x AquaOne 1200L/hr internals for flow, and a single Jebo 819. It just isn't doing the job with that fish load unfortunately. Either that or train oscars to eat properly, that tank grows inch long tubifex worms all the time, despite weekly gravel cleans :roll:
Thanks wok, I'll do a search and have a read