As ever, friend
Heimdall's Spyflight website is good value on this subject - even for the
Chipmunks
One of the Gatow/BRIXMIS Chipmunks mentioned on Heimdall's site is WP971 now G-ATHD on the British register and on which I have several hundred hours.
It originally had a hybrid colour scheme of RAF paint with civvie registration displayed but it now has an authentic Training Command scheme. (I believe at one time this aircraft was also at Hamble).