Thanks Bud!
Interior work continues with detailing the gun ring.. The 2 cm Becker would require some reinforcing of the ring. I made a measuring strip and clamped it on:
Then cut the details from hi-po flat black vinyl , 2 strips that cover the seams and look ok ;
The mount and reinforcement is from pics of other planes with this sort of armament.
Detailing continues with a bombsite cover , and mg mount finishing: