Glad to hear you removed the cylinder head with no problems. How does it look? If I were you I'd take it to a machine shop (call different MB shops and ask who they use) and have it restored and have the seals/guides replaced if necessary. Money well spent. For valves seals/guides and to clean up the head should be no more than $300. Here's some before and after pics of my m103 head after head gasket replacement:
Good luck! Be sure and replace that chain guide!
'01 E430, Sport 72,000 mi
'98 C280, 126,500 mi