Car Door Typhoon electrical components needed.

We are looking for 3x General Services Junction Boxes for the Project Typhoon electrics…

1x General Services Junction Box. Port. P/No: CZ 22001/-
1x General Services Junction Box. Starboard. P/No: CZ 22001/-
1x General Services Junction Box. Rear. P/No: CZ 22002/-

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The codes are taken from very iffy photos of the Duxford example, as codes do not appear in A.P.1804A; and may not be completely accurate.
Any leads would be much appreciated.