with that size tank you are best to consider an in sump system by all mean. sure its a little extra cost at the begining but you will save more in the long run. I would suggest vertex skimmers, i have been running both vertex and reef octopus but IMO
best bang for your buck goes to vertex. anywho, you will need to rinse down the aqurium qith hot water and vinegar get it nice and clean and rinse it out again. then go buy yourself some sand
(not live sand) and have 1-2 inches of sand evenly spread around in your tank. Once you do that go get some RODI
water, or a RODI
system for your house. Put a large bowl in the aquarium and start mixing water and salt in a bucket. Poor the water in the bowl so it does not disturb the sand (dont have to wait days for the cloudiness to dissapear, trick i learned over time). Once you have your tank filled with salt water (when you buy sand,salt also buy a refractometer) test the water after about 12 hours. You want your salt level to be .0122-.0124. Once your salt levels are good go buy 100 lbs of liverock to start (make sure it is cured, save time and trouble). Once you have your live rock you will some power heads, you will need 3. one 1050 and two 1200's. get them all going and let your tank cycle for a week or so.
Before you do all this you need to get your tank drilled for your sump. one hole will do but two is preferable. You will need the protein skimmer and spare tank at least 40 gallon and a return pump (mag7 should do but could go up to a 9.5). The spare tank should be placed directly below the main tank. With some PVC
run the hole in the main tank to teh sump, where your skimmer will be, not a bad idea to have 30lbs of live rock in the sump as well with some macro algae. Place the return pump on opposit side of skimmer with some more pvc
going back up to the main tank so water gets pumped back into your tank. I have it set up with my skimmer and micro algae on the left, live rock in the middle and return on the right. You can add baffles to seperate but not required. Once you have water about 60% filled in the sump it is all ready to be turned on.
Start with your skimmer, then your return pump. Make sure your water level in the main tank is not high enough to start draining into your pump or you may have a nice flood if your return pump doesnt work for some reason.
once you see the pump is working fine, top up your main tank or add more water to you sump tank until the water is coming into your sump and back into your main tank at a constant level.
Once you tank has cycled for a week or so like this, then its time to add half your cleaner crew. I would start with 20 hermits and 20 various snails plus 3 mexican turbos... after a week or so like this, start buying test kits for nitrate nitite and ammonia. your ammonia and nitrite should be zero and nitrate will eventually be zero. If nitrates are very high do 20% water changes every day for about a week until they are under 5. If you are maintain good water levels start by adding a pair of clown fish and go from there.
Welcome to salt water.
You do not need any fancy lighting for quite some time until you decide you want to keep Corals. Fish and live rock need only the most basic of lighting
best of luck