97 E300 fuel line & delivery valve replacement ??

[ladfalat]

Going to replace leaky fuel lines (o-rings) and leaky delivery valve seals on a NA OM606. Can this be done with just the crossover pipe removed or do I need to pull the manifold. P of D's pix are of the turbo, the IM is different. Seems like with the crossover pipe removed, there should be enough room from up top and underneath. Is the job way easier with the IM out of the way? Has anyone done this with IM in place? If pulling IM, is a new IM gasket a must? Thanks