Will I kill the value of my Demon

That was my plan tasteful changes that appear to be period correct. I think if I was switching from hemi orange to f7 then that would be a terrible move.....but triple f7 just isn’t real sharp looking in my opinion.
I'm with you. You need to make it you own and enjoy it. I had a 70 340 duster back in the day. I'm now going to recreate it from a green drag car shell to my liking, not what I had but what I want. I hope you all the best and have fun with it. Every here is wonderful help.