You can still get new parts from a few places, such as -
https://www.hotroxuk.com/jj-capacitors-caps.html
The fact that they are 40uF I wonder if that could mean that they have been replaced before (if so could well be good), do they look newish/modern, has the soldering been disturbed ?
Cannot view the pics in your links.
Update - after more attempts now able to view your pictures, difficult to be sure but they do not look new/modern.