Here’s an interesting project, Vtuned ’, has bought a salvaged 1965 mustang and 2015 mustang. His plan is to use as many of the modern elements as possible, including the interior and fit that in the classic 60’s exterior.
Not for the purists, some of the work will make you cringe, but his enthusiasm and gung-ho style is a good watch.
If you like him, his friends ‘ goonzquad’ also do a YouTube series, of similarly extreme rebuilds.
https://www.youtube.com/watch?v=aX-Mo1tOAU8