Joe,
Accurate museum quality replicas probably belong in museums where they won't hurt anyone. The rest of us who are building an aircraft to fly have to make many "adjustments" to the original designs in order to fly safely and reliably.
About the best you can hope for with one of these latter machines is that it looks like the original, sounds like the original, flies at least as well as the original, and that it is safer than the original.
No real dilemma, just a whole slew of engineering decisions. Once you decide your build belongs in the air, that sets the path.
Sid