Welcome Blesson to the forum! Your best bet for hardware will be to engage our friendly sponsors on this forum. Usually its hard to find a reef ready tank that is already made to your desired dimensions, my suggestion will be to custom make one, along with the stand and sump. Prices are definitely more reasonable as compared to purchasing a pre built, or manufacturer branded. On top of that, you get to decide with recommendations from tank maker on your sump design and skimmer size dimensions.
If u going to engage a good tank maker, most of the time, they can fulfill your equipment requirements as well.
Livestock wise, its encouraged that you spend some time going around the marine fish shops on this sunny island. List of all the marine fish shops can be found http://www.sgreefclub.com/forum/forum/52-lfs-directory-listings/ . If you are looking for something in particular, just post it in our "Weekly local fish stocks report" and we can guide u if we've come across it at a particular shop.
Good luck with your tank build! Always the most exciting phase!