Bro, I am quite new to marine fish as a hobby. Last year April 2010, i bought my 5ft wall mount from Aquatic Style.
http://www.aquaticstyle.com.sg/ourproducts_wall_r05.html
Before i bought this from them, i did also consider Atlantis, but thought estatically, Aquatic Style look better. It was a disaster, becos no equipment to bring the temperature down. I also did not take up their so called maintenance package, so I set out doing my own modification pretty much like you. change the pump with wave maker, try to put in a Sesun mini skimmer, even consider ice probe but could not fit. And becos my job requires me to be overseas half of my time, it has been a costly affair replacing LS. Currently, I just keep 1 Nimo, 1 gobe, a few snails, 3 crabs, 1 firefish and a chromis. Corals couldn't make it. Now i use 2 fans, 1 at each end to maintain the temp at between 27-29 degree.
Curious to read that u import in a gadget, half the size of the ice probe. Can you share with me where to buy? Brand and specs.., etc. Big Thanks.