I agree with all except the 15-20 grand part for 500 on a stock blocked streeter. I'm probably out of touch with prices, but here's my best half-asssed shot (feel free to add to and/or correct):
Heads $1,500
Cam - $350
Intake - $500
Turbo - $2,500 (70mm for $500 + $1,500-$2k for parts & fab or $4k kit)
TKO - $2,000
Clutch - $500
Shifter - $200
Scattershield (bellhousing) - $200
Driveshaft safety loop - $100
Gears installed - $500
MAF, TB, Injectors, rockers, pullies, adjustable fuel regulator - $1,000
colder plugs, wires, distributor cap, fuel filter - $200
EEC Tune - $500
MSD Box + coil - $500
Torque box reinforcements - $500
springs, shocks,
LCA/UCAs (not a wild
suspension, but good enough for a streeter) - $800 (?)
Fuel pump + inline and boost-a-pump $350
Gauges - $500 (boost, fuel pressure, shift light)
Drag Radials - $400 (200 a tire?)
That's $12,250 for the parts I would want to do it right. So actually quite a bit more than I expected, but I'll post it anyway. Then again, I think that's all premium stuff purchased at mostly new. Could probably cut the part costs in half buying used stuff, though.