I'm sorry, but that's bullshit. Modern cars are faster, require less maintenance, and are safer in every way. In the 60's there was just as high a ratio of piece of shit cars to nice ones as there is today, everyone didn't drive around in a Camaro SS or Chevelle SS and race a Charger at every stop light. Back then there were performance shops like Yenko and Shelby, today Shelby is still around as well as Lingenfelter, SMS, Roush, Callaway, etc.
For example,
1965 Shelby GT350-R
Original cost: $6150
Adjust for inflation: $42,000
1/4 mile: 13.6 @ 104mph
0-60: 5.5 seconds
Skidpad: .86g
Braking 60-0 144ft (!)
2010 Camaro SS
Cost $35,380
1/4 mile: 13.0 @ 111
0-60: 4.7 seconds
Skidpad: .90g
60-0: 105ft
$7k cheaper, better performance in every category, better gas mileage, etc.
You can't make the modern cars have no soul argument either, it's been bitched about by the older population since the beginning of time. In the 60's some complained about the music being shit, now people complain about the music being shit compared to the 60's. Is everything getting worse with time? I'll give you a hint... It's not. It is getting better consistently. (or in the case of music, at least equal)
Just because you prefer to have an older restored car does not mean anything about the actual viability of modern performance vehicles. and for the money you're going to spend on your supposed project you could do a lot better with a modern car but, thanks to our freedom, you can do whatever the fuck you want, though you have yet to do anything but talk about your project car.
(This is not a dig at classic cars, they have their place and I very much appreciate them for what they are, but to sit there with your fingers in your ears screaming "la la la classics are better la la la" is fucking stupid)