As much as I would like to say Plum Crazy I do agree it is used a bit to much, not that's it's a bad thing though.
Sublime is a nice "I'm right here and I want to be seen" color but I always liked it a little more on the Cuda's and Challenger's.
Go Mango is another fine choice and another one I really like, it stands out but it's not too flashy.
But as fine as all these colors are I think if it were me I would do it White. I can literally put the ones I've seen White on my fingers and not be afraid to lose fingers. All online to boot, not once have I seen a White '70 in real life. I think it would make for a nice clean car, nothing overwhelming just simply "I'm here".
Of course Mopar being my way of life I wont argue against any color chosen, they're all fine and I'm sure which ever you decide on will do the car complete justice.