I went through this thread so far, plus checked in game and on the skins admin page for all the status of existing skins for the C.202 and C.205, here's what we have currently got:-
Listed as Air Force/Squadron/Plane number then skinner and status.
I couldn't find a plane number for Krusty's 75 Squadron C.202 and I'm assuming FTJR's 3/3 aircraft is an ANR C.205.
C.202
RA/75/- - Old default skin - taken
RA/84/1 - Croduh - orphaned, open to skin
Croatian AF/2.JGr/1 - Croduh - orphaned, open to skin
RA/386/1 - Croduh - orphaned, open to skin
RA/80/6 - Croduh - orphaned, open to skin
RA/91/7 - Croduh - orphaned, open to skin
RA/71/8 - BH3841 - orphaned, open to skin
RA/151/2 - PotsnPans - reserved
RA/75/- - PotsnPans - reserved
RA/75/? - Krusty - reserved
RA/73/10 - Dragon Tamer - reserved
RA/84/12 - Dragon Tamer - reserved
RA/91/3 - Greebo - new default
C.205
RA/96/1 - Old default skin, open to skin
ANR/1/18 - Airmess - orphaned, taken
ANR/2/4 - Airmess - orphaned, open to skin
ANR/7/1 - Krusty - reserved
ANR/2/22 - Krusty - reserved
ANR/3/5 - Krusty - reserved
RA/351/3 - PotsnPans - reserved
LW/JG77/1 - PotsnPans - reserved
ANR/1/18 - Dragon Tamer - reserved
ANR/3/3 - FTJR - reserved
RA/352/2 - Greebo - new default