Hi Tweedle,
Is this the part that you mean?
https://www.ebay.co.uk/itm/VOLVO-C70...-/264629715080
If the ends and the seals at the ends are good, then is it the fat hose that is leaking?
For some of my own ATF lines, which are very similar, I replaced the hose section using appropriate hose and clamps from a local hydraulic company. Cheap and easy. Just carefully cut away the existing pressed clamps.
Like this
https://www.matthewsvolvosite.com/fo...ic.php?t=86914
except I used specialist hose (which was still cheap).
I can provide more info if you need it.
Steve