Here's the fuel line info -
http://www.peachparts.com/shopforum/showthread.php?t=105291&highlight=fuel+manifold+ring
Do some reading on the glow plugs. They have a tendency to stick and break off in the head. Here's my example -
http://www.peachparts.com/shopforum/showthread.php?t=109101&highlight=baum+tools
Here's a good post about glow plug replacement -
http://www.peachparts.com/shopforum/showthread.php?postid=580948
Try Phil from Fastlane above for your parts or MBCA technical director George Murphy,
George_Murphy@compuserve.com
Len