Thanks Lyze.
Finally, after over a month of delays, the case is done!
Apologies for yet more grainy pics, had to use my laptops webcam:
Final cost of case: $190 AU
All that's left now is to build the power switch (hopefully I'll be able to get a hold of a soldering iron and do it myself, if not I'll have to have one made up) and put the piping in for the pump.