1. stay off this page
2. stay off any reefing page
3. dont go to lfs
Meh I heavily disagree. If you want to genuinely save money, just pick a few corals that are easy enough to grow out, grow them out, and if you still don't like the look of your tank at that point then begin selling frags online to finance more coral.
Shop your local fish clubs, Facebook is excellent for this.
Don't spend over $40 on any one piece, unless it's going to be your show piece.
Focus on what's cheapest or not of public interest: Favia, Chalice, Duncan, Hammer, basic zoas, basic sps, frogspawn, bubble coral, galaxea are all good examples.
Find someone willing to give you 20-30 gallons of water and rock if you are able to rehome some big colonies they want to sell.
This way you can go buy a tank and hob and a light and you're set.
Buy a 48" tank. T5 lights are cheaper in 46" then 35".
Buy the heater properly sized for your tank.
Focus on good flow rather then expensive lighting.
Corals are photosynthetic so focus on water changes instead of food. Feed your fish a bit generously.
Remember that today's darling will be the next decade's prom night dumpster baby in terms of price.