Train via Koblenz or Trier to Bullay DB station (all trains stop here), then 7km by bus or cab to Zell-Mosel.
From Paris Est in 3 hours and 40 mins via Saarbrucken and Trier.
From Frankfurt HBF or Frankfurt-Main Airport in just over 2 hours via Mainz and Koblenz.

Fly Ryanair or Wizzair to Frankfurt-Hahn Airport.
Catch 750 shuttle bus (every 2 hours) to Zell-Mosel, Lindplatz stop, takes 38 mins, walk back 400m
Or catch a cab.

Drive to Rhineland and pick up the A421, turn into Zell-Mosel at the bridge roundabout. House is 500m along, just before town centre, with unrestricted 90 degree parking opposite.