then in that case the essentials list is getting larger as is the cost - stony corals are generally in tolerate to change.
Plan for nitrate control - oversized skimmer, nitrate resin of some sort, and or cheato.
phosphates removal - R/O DI unit ( 100 gal per day), PO4 Resin
Stoney coral toxin removal - activated carbon chamber ran no more than 48 hours per week
Alkalinity - Lites for the sump to ionize the water at nite as to hold ph, reef crystal salt mix, calcium and mag dosing equipment, salifert or red sea tests for nitrate, po4, cal, mag, alk, iodine, and heavy metals, refractor rather than hydrometer.
Lighting - Using a lux meter to find appropriate zones for specific coral types especially with 3 different types of lighting ( the MH and led will give you better lux at depth than the t5ho), the MH can heat up the water running 12 hours so plan on buying a good chiller, glass reflects light so no glass lids
Current - sps likes up to 30x the volume of tank water moved per hour this is a total including the main drive pump, lps 20x , they need this to shed mucus, in tank circulation pumps should go side to side.
Electricity issues - large reefs pull a lot of power enuff to overload the rooms breaker so a dedicated breaker or 2 for your reef will go a long way, overhead wall outlets will help prevent salt creep fires, and a good timer for your lights.
Water change tank - filled from the ro unit with a tds meter ( tells you when to change filters), a pump or 2 to mix and hold salinity, heater for ph
LR - CURE ALL LR as to not give your corals worms, use flat pours rock of salt water origins preferably those from reefs or use the man made aqua cultured - also always dip corals in coral rx to get rid of the nasty hitch hikers.
All I can think of at the moment - best of luck - large reefs can be very difficult - a total hobby killer so tread slowly.