Engine bonnet paint treatments..

its your car....whatever you think looks good will look good
(and im only saying that because I am NOT pleased to see the colour change on the dart...I personally think the faded yellow (was it EL5?) looked much better then the purple you choose, but again it is your car)

my personal favorite hood treatment is the demon sizzler striping

there is one on this page with the hoodscoop you want

http://www.forabodiesonly.com/mopar/showthread.php?t=207673

BUT im not sure if the decal would fit your 75 hood
we do have a member on here who makes these decals and I bet he could custom make one to fit for you