Nothing of the WWII or post-WWII history of this aircraft is given on the aircraft's sales page. The identity that this airframe goes by is WkNr. 400616.
What is known, is that Fw 190D-9 400616 was shot down on February 13, 1945, by P-47's of the 22nd FS, 36th FG (9th AF) near Hubingen/Montabauer. The aircraft, assigned to 9./JG54, as "White 16", was being flown by Uffz Gunther Koch, who was killed in the crash. The aircraft was reported to have been 99% damaged. The remains of the aircraft were recovered in the 1980's/90's at around the same time that the crash-sites of a number of other JG54 and JG26 Fw 190's were also tracked down and the remains recovered. Sandy Air purchased the remains in 2008, consisting of the original Jumo 213, two extra Jumo 213's, and a selection of recovered D-9 parts, from a German collector. Sandy Air was required to have much of the entire airframe largely built from scratch, incorporating any of the original D-9 parts and engine they had from the original wreck, where they could. A section of the cockpit is Flugwerk manufactured (and there is/was some speculation that perhaps the tail section is also Flugwerk-related). For a static-build, it looks great, and with only two other original Dora's in existence (the D-9 at the USAF Museum, and the D-13 at the Flying Heritage Collection (not to mention the TA-152 with the NASM in storage)), it is wonderful to have another example - and the only complete example outside of the U.S.