Congrats! That actually looks like either a 56 column, or a 65. Do you happen to know the dimensions?
BTW- Salt tanks are almost always going to be more expensive than FW. If you are on a budget, this is no doubt something to consider. The light that was included looks like a single tube NO fluorescent, and will keep only very low light plants, and will not support any photosynthetic corals. Keep in mind that while you can get quite a good deal on a twin tube T5 HO that will grow a decent variety of low light plants, you will almost certainly spend much more on lighting that will support any photosynthetic corals, because you have a deep tank there.