Suggest you check out the Flugwerke new build 190s, the new build P51As that came out of North Dakota, the Yaks out of Russia and so on.
The Allison Mustang that crashed at Oshkosh was a new build bird all the way.
One of the Flugwerke 190s is going to be a D9 with the correct engine, as well as the A models they' ve done.
You've got the new build 262s out of Washington too. New build P26 Peashooter just flew. New build F3Fs flew some years back done by the guy who later started the new build 262 project. Also some new build Ki-43 Oscars were/are in the works.
a number of companies make new build parts for warbirds as well. The Flugwerke guys do 51 and 109 parts too.
If you've got the money, someone will build it for ya, but it won't be cheap.