Freshie maybe going salt with my 300 gallon?

[Hustler]

Hey all,
Im mel from edmonton.
I am a long time freshwater keeper zero hours saltwater newbie
Every time im at the pet store i stomp right through the salt section just like when the wife comes and trys to stop at the kittens....
Were not salt people i say..... life is complicated enough.....
But doing exotic freshwater for 15 years plus the question does start to widdle you down lol....
And when i got my 300 set up thats all anyone asked.... Is it salt? will it be salt? blah blah blah....
So now im sitting here... watching youtube videos of how too reefs, seeing all the lion fish, and panther groupers and crazy corals and I feel a little like one more video is going to push me over the edge.
I know there is ALOT to do when it comes to salt but for the average freshie how hard is it to make the switch?
My 300 has a giant sump with room for a skimmer, I have an RO unit and the tank has been nothing but perfect since the week I filled it as far as PH and ammonia ect
Is this a cross over worth doing? lol Is this just evolution and Im trying to fight the current

I would love to do a reef setup with a community of fish and critters and right now I am trying to price out a rough cost to get going...
from what Ive gathered so far ill need,
-Salt
-Skimmer
-Big mother lights
-Live rock
-water/light measuring tools

Here is what Im working with right now,
300 gallon 96x24x30 with a 6x18x24 sump and a Giant pump (from pices store rack system) Tons of mag powerheads and fresh water drip system run into the tank and drains to the sewer (can switch to RO ect)




Any advice where to start Is greatly appreciated