Your welcome. Ok lets see, is sw time consuming? Eh, not for me. I only do fish and inverts tho no corals.
The size of your tank wont make it easy on you but it can be done.
I would say get a hob filter, your skimmer, heater, light, sand, not crushed coral.
Your skimmer wont be needed until a few months in however.
Also get a few pieces of good quality live rock.
As far as salt, I use instant ocean, but there are many diff types and some are "reef" salts. They have added trace elements.
Your salinity or sg for a reef should be around 1.024-1.025.
Idk what else u need to know. Feel free to ask.
Basic start will be add water to your tank then add salt. Mix give it a day and check your salinity. Once where u want it add your sand, it will take a day or so for the tank to clear. Once clear add your live rock.
Now the fun begins lol you wait! The rock will help cycle the tank. Once cycled your tank is ready for a fish or maybe a few cuc. Couple hermits, is a good start