looking for a circuit board design for a Croft Acoustics Integrated Amplifiers

Hello.
I'm looking for a circuit board design for a Croft Acoustics Integrated Amplifiers.
There are different versions of the design of this amplifier. Maybe someone knows where to find a circuit design?

1862841-e83deba2-croft-phono-integrated.jpg

croft-acoustics-croft-acoustics-integrated-r.jpg

6292c0deac19b51d4b42053f4137dc15.jpg
crL4c0d.jpg