I am new to forum and have only had my w124 300d a few weeks.
Therefore I have not attempted any work on it yet.
Now my dodge for bleeding a fuel system such as this is to have some one put a rag wrapped hose in to the tank and blow down it to pressurise tank and force fuel through.
I suppose an old fuel cap drilled and fitted with a small bore pipe that ran to front of car so it was a one man operation would work well.