[Seaplanes]

I can give some additional info on some of the aircraft you listed. Apparently not all were 100% write-offs, but were reassesed as repairable.
This concerns W.Nr. 2862 that was reported received on 16.06.1940 for repairs at Kjeller Airfield, now a repair facility for Luftwaffe under Junkers supervision. It used to be the old Army Air Forced factory at Kjeller now in German hands. This aircraft left Kjeller on 01.10.1940 and saw further service in Luftwaffe, i.e. with K.Gr.z.b.V. 60 and III./T.G.3.

W.Nr. 6257 was received at Kjeller on 16.06.1940 and left on 20.12.1940.
Unfortunately, I have no further history on this aircraft.

W.Nr. 6069 also arrived at Kjeller on 16.06.1940, but did not leave the repair facilities until 27.10.1941. The aircraft was then issued to 2./K.Gr.z.b.V. 108 in Norway and in the spring of 1942 was given the unit code 7U+OK. It was reported with the same designation with 2./T.Gr.20 on 21.10.44. However, at the time of capitulation, the aircraft was at Fornebu airfield (Oslo) on 09.05.1945 with the unit code 7U+EM of 4./T.Gr.20. The plane was taken over by R.No.A.F. on 18.06.1945 but was rejected due to the poor condition of the aircraft. It was then transferred to RAF at Gardermoen 22.06.1945 and to EASSU Hamburg-Fuhlsbüttel on 28.10.1945 and given RAf Ser.No. VM916. To No 6 M.U. 14.02.1946 and to Short & Harland on 27.06.1946. Used as spares for the rebuild of other Ju 52's.