Nothing wrong with a little change. No matter the hype, you will Always be able to find another Cuda. I considered the same thing although I was after a Viper GTS/ACR. After some thought, I decided on an alternative to the Viper, [ It's faster w/ better handling]
I figured I have owned lots of Mopars, probably I'll get a Viper someday. The Viper will outhandle and out accelerate nearly any Cuda/Challenger, and if you find a faster cuda, you will lose him within the 1st few turns, no matter what newfangled suspension it has.
Your only here on earth once. Experience variety, or die blissfully ignorant [ if you only ever had a cuda and nothing else ever ]
OK, I sold my 'Cuda as you can see in the signature. Still have an old mopar which will take any v8 drivetrain though, so I can still use my Mopar knowledge.
The way I see it, I enjoyed the 'Cuda, friends liked it, the public liked it, I put some money/upgrade parts into it, and when I sold it it was in better shape than when I bought it. My ownership was good for the car.
Now I'll have a new rig , which I , my friends, and the public will enjoy.
Same idea if you get a Viper instead. Like 71Fish said - " if you're considering it..." That's when I realized I could live with and be happy with the swap. I still have the memories and the pictures to prove it, nothing can take that away !!
Good luck in your decision.