Pim, you are well-placed for this.
Look at
http://www.cmsnl.com/ They have exploded diagrams.
No, they probably don't have your exact model but try the CX650 E-D pages for almost everything except specific engine parts. For engines, try the GL500 type.
It's not perfect but you will find many things you want are out of stock anyway.
That's a fact of life these days as Honda refuse to supply original parts & there are not many pattern parts available.