Sweet as your best off getting a skimmer if u can, all u need is some sand no more than 10KG's unless u want to DSB (deep sand bed) or BB (barebottom) i preffer BB. Get some rock and salt water and cycle the rocks this could take up to 8 weeks. Do water changes over this period and test, the dead matter trapped inside the rocks should be enough to cycle the tank. The more flow the better the tank will be. One thing people dont appreciate enough is flow.
HTH Ben