Let's break this down a bit, shall we?
Tank, Marineland 300G (Saphire 3 sides) $2000 -- ($1800-$2000 is about right, but you can save 10% at the LFS with a $10 ARC membership card or wait for their big sales)
Stand, Custom in wall (Sheet Rock & Metal) $3000 Again paying someone to make the stand and do all the dry wall work. -- (I don't know about the sheet-rocking/in-wall part, but Prof, one of ARC's sponsors can build you a beautiful stand/canopy at a fair price)
Water Movement, 4x mp40's $2000 This might be overkill but its for SPS right! -- (Big waste of money. You can buy 3 Koralia 8's for around $300-$400. I know this is blasphemy for VorTech owners, but they are so overrated and not necessary)
2xEheim 1262 $350
skimmer, Reef Dynamics INS400E $1500 -- (There are much cheaper options, including used skimmers)
heater, 2x 800W $100 -- (May not even be needed)
ZeoVit Reactor, Nextreef mr1 $100 -- (Not necessary)
Controller, Apex Neptune $1000 (with all the extras) -- (Apex Lite will run you less than $500)
Lighting, 3x 400W MH -- (No reason to buy new. People are practically giving away their MH reflectors and ballasts to go LED)
Ballasts $450 -- (See lighting)
Bulbs $240 -- (research "Plusrite" bulbs, which cost about $12)
Pendants $450 -- (See lighting)
T5 Actnic $500 -- (See lighting)
Chiller, JBJ 1/2 hp $1100
Criptic zone, 40G Breeder $200 (Probably don't need this but I like sponges)-- (Not necessary)
Refugium, 40G Breeder $200 (Mainly for pods. Not in the sump but above tank flows right into tank) -- (Not necessary)
algae scrubber, $350 -- (Defintely not necessary if you have a good skimmer)
Sump, $500 -- (Cheaper options)
Auto Top Off $100
RO, Spectra pure 180GPD $400
Rock $2000 -- (If you're thinking liverock, switch to dead rock and just seed it; still way overestimated for the amount of dead rock you'll need)
Sand $1000 -- (You don't need "live" sand. Regular sand runs about $20-$25 for a huge bag)