If you do need some just let me know, but it wouldn't be my first mailing across the puddle. I think you'll find the liner works very nicely. I got the idea from another C&V regular, last spring. That looks like a nice BB shell, I don't blame you for wanting to protect it from having the cables cut into it.
One other item that could keep the cables off the metal of the guides is the plastic insert seal, that slides into the cable ferrules, with the long tube off the end. Slip the tail in the guide then insert the cable through them. But this won't be a freebee like the liner will.