May as well buy a restored Mopar.....

if you build it yourself you know what you have, and for a lot of guys the fun is building the car. Doing the work yourself saves a lot of money. There are tons of ways to save money on your build. Good useable parts are still plentiful and reasonably priced. If your project is 2 or 3 years that's lots of time to find the missing pieces.
If you buy everything new at current prices it is cost prohibitive now.