Ki-21-Ib (Army Type 97 Heavy Bomber, Model IB)?

[joyban]

Hi

I am searching for any details interior pics of Ki-21-Ib -Army Type 97 Heavy Bomber, Model IB?

What was the exit / entrance way for the crews any information?

What was the standard crew configuration of this Aircraft?

Also in the later years of the war say 1945, how easy was to change the configuration of these aircrafts to use as a make shift transport aircraft and carry more people other than the default standard crew?

Is there any database of Japanese Aircraft losses in the year 1945?

Many thanks for all assistance.

Kind regards