Translation of Bilbo's Road poem (LotR ver)

[sorin]

Hello! I am working on customizing a door. The idea is to have a border of characters (I have space for 51) I am thinking Cirth, but maybe Tengwar.
What I am looking for is a translation of:

The road goes ever on and on down from the door where it began

into Quenya ideally, and/or Sindarin (just for fun)
and then transcribed into Cirth and carved by me into the door.
My faith in online/automated translators is nil. Hence I am asking for a human translation.
Other fun things about the door are that I have a Durin's Doors decoration I am changing to glow under a blacklight and it will illuminate as a person gets close (via motion detector)

 

[sorin]

Upon further consideration I think just Sindarin would be fine. I can figure out the Cirth myself as long as I have an accurate translation.