This is my estimate of value on the used market.
The tank is worth $20, drilling and overflow $20, plumbing $10, 10 gallon tank $5, setup for sump $7.50, pump $15, extra powerhead $10, sump light $7.50, top light(know this is a 30" fixture on a 24" tank, but works great) new 65watt 10,000K bulb $50, heater $10, $45 for stand, and $30 for powerstrip/timers/and more.
$230 in hardware, everything you need.
Plus $110 worth of quality live rock, live sand, live water, algae, corals, and/or fish; you pick out what you want.
All or nothing, I will not part out and price is firm; $340 for all this. Tank will be cleaned before pickup. For a little extra I can deliver and setup.
Rock, sand, coral and fish will look different than pictured; it's up to you to pick out what you want from a different tank.