James,
Since it's been a while since ladder line has been in common use,
there aren't many 'standard' ways of doing things in common usage
anymore. So, as long as you keep a few things in mind, your
imagination will supply you with any number of 'ways' to do things.
Sharp bends, being close to metal things, and 'deforming' the feed
line's shape too much are things to avoid. After that, it's more or
less whatever you can think of, sort of. Lot's of 'wiggle' room in
that, your millage may vary, etc.
Good luck.
- 'Doc