I would disagree slightly with Rick, in that I think that B5 tends to be a bit of a premium in terms of desirability. Most of the potential buyers will put a premium on the high impact colors. And a number of potential buyers will go gaga borderline stupid chasing factory black cars.
I have a FK5 burnt orange and a FK6 "rootbeer" car in my little E body fleet, so I know all too well that colors like those 2 decrease interest among buyers. My best car friend has a GA4 gunmetal gray 71 Challenger vert, and I park my FK5 Challenger vert next to him at a number of cruises every season. And at least once a year without fail, when we are sitting there behind our cars, someone will walk up and ask my friend if he wants to sell his car. I can't remember the last time someone asked me if I had any interest in selling mine, over 5 years at least. I've been trying to sell my GK6 car and have all but given up, I'm about to buy a 4 post lift for my garage so I can bring it home from storage. Screw you guys it's coming home (I'm saying that in my best "Cartman voice"
People get overly hung up on the whole #'s thing IMHO. 2 of my cars are not #s and I take my cars out to events all time. I've yet to ever once find anyone at a show crawling under my car looking to see if the numbers on the engine match the VIN. And I've yet to notice that my #s cars drive any different than my non numbers cars. Yet the market puts a lot of value on #s, so its like the stock market, the trend is your friend, so even if it seems dumb, it is what it is, and it ain't going to change.
As a lifelong rustbelt resident, I put original sheetmetal well above color and #s in my wanna have list, but that's just me.
Next time I have space for another car, I want a light green metallic with white top and interior Challenger vert or 69 Coronet R/T vert. I do recognize though, if I accomplish that dream, I better plan on owning it until I take my dirt nap, as no one will ever want to buy it from me!
My garage is a little bit of a island of unwanted toys, but I like to be different and that is fine with me!
Congrats on the B5 71 cuda, the market loves '71 cudas and loves 4 speeds, so if you do decide to sell someday, I doubt you'll have too much trouble finding interested buyers, even with that NOM thing the silly market is overly concerned with.