Here's a rough list of my current project:
V8 Mustang? Anything within several hours was stupidly priced.
I6 - 3 hour one way drive and it's in my shop for $1700 complete with Granada spindles and calipers in the trunk. Rear quarters and front floor were shot, but I coulda put a sticker on it and drove it.
http://advancedautorepairsonline.com...and%20more.htm It's a good bit beyond these pics but due to a computer crash killing tons of data I still have a ton of work to do before bothering with web page updating.
Donor car with roller cam 302 and AOD $500 with a car left over afterwards. An intake and cam will be about $500 new. I haven't shopped yet. I can do better once I put the time in. Carb and heads still to be determined but expect $1000-1500 for good heads. I could stop at the $500 donor cost and use all the parts as-is plus an inline fuel pump and odds-n-ends. Nahhhh...
9" rear end still unavailable at a decent price so I'm looking to probably shorten an Exploder 8.8 for about $300 all said and done with disc brakes and a locker. I can live with that

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Front coil springs were either $60 a pair or apiece. I don't remember... I've already done the Shelby drop - not because I want it lowered. I want the handling. It was free.
I'm really expecting this to run around $6k-7k all said and done. That includes the car, paint, a/c, tires, wheels, quarters...
I'm doing everything myself. My build expense is parts only. Total value for me to sell it? $642,386,214.53 and that's cash only, not negotiable.

How much each project costs relies entirely on a person's ability to be patient, lucky and shopping skills.