Yes I would try Edson. I have the Yanmar engine that had the Orion cables. I was able to get cables from Edson that I was able to replace my original cables. This however was a very difficult job as the end fitting did not match and fittings had to be made up.
FWIW - I unexpectedly had my shift cable break since writing that post a few days ago
My current (broken) cables are teleflex 8' PN CC17208. It's a discontinued part, but replaced by some new version with lower friction and tighter radius. Ordered new from defender as they were half the price of Edson. Seems to be generically referred to as a "type 33"
Fair warning, I have a Volvo engine, very different than either the Perkins or Yanmar. But the cable lengths are probably the same.
PITA to change. I feel stupid as I rebuilt my entire pedestal last year and those cables were the only thing I didn't change as they seemed very smooth and in good shape.
I took my boat out last weekend to test the new cables. My dock neighbor came with. After the steering repairs/upgrades and now the control cables, he described the helm as "sexy as hell."
You don't realize how worn those parts are until you feel the difference. And I have taken that damn pedestal apart so many times it wasn't even difficult. Only a few hour job to replace the cables, and less than $100 for the pair.