Okay. Go get yourself a 75 and put 2 EcoTech Radions over it. If you can, get a MP10 & MP40 inside there, too, but if not the Koralia brand powerheads are good, too, and you can get a wavemaker with those, but the EcoTech products all sync. Not really a downfall at all, just a cool plus if you have it. If you want corals, you do need a skimmer and BakPak and Reef Octopus both make good HOB versions or full sizze in-sump skimmers. Theres better, but not for the price IMO.
After that equipment, you just need a good quality heater, I recommend 2 smaller ones on a controller (in case one braeks, trust me that its worth it. itll never happen at a good time and some of your expensive corals are down the drain). Next is plenty of sand and 75-150 lbs of rock. Most people use ~90% base rock and seed the rest with a couple of live rock chunks to seed the dry stuff.
From there, a smaller tang species would probably do okay, but be prepared to upgrade or rehome later if need be. Youd have most equipment for upgrade anyways! Just another light and some more rock lol
Clowns, chromis, gobies (1 per tank), royal gramma basslets, firefish, some dwarf angels and other small to medium fish would do great.
For corals, I would start with leathers, mushrooms, zoas, kenya tree, frogspawn, hammer, bubble, star polyps, palys, and duncans. Moving next to candycane, montipora, birdsnest and favias/brains and finely to any sps and anemonies after 12+ months of STABLE water quality. That should give you more forgiving corals first, and as your water gets more stable and better quality, harder and less forgiving corals and anemonies.
Theres plenty of other choices out there for equipment, but thats what I would do, personally. Do your own research and ask about products you see that you like and go from there. Hopefully you get going soon, wed love to watch as you do.
Good luck, happy reefing and remember that nothing good happens fast.
