Hello Alfred,
Modern injection fuel line will handle over 100psi. Your Pogoda system runs at about 14psi. However all lines should be rated for at least 40psi, since this is the max pressure produced by the electric fuel pump if a fuel return line should become clogged.
Any Mercedes dealer or autoparts store can sell you lengths of fuel injection fuel hose in bulk. You have three choices as I see it. You can search for an original or reproduction, you can have hydraulic sevice shop remake the line by crimping a new hose onto your original fitting. In a pinch you can make a diaganol cut accross the metal crimp with a hack saw, carefully peel the metal crimp off the fitting and clamp a new section of fuel injection hose to the fitting. Away you go!
The configuration of modern hoses are different from the "fabric over" on the originals. Improved sythetic rubber and high strength fibers in the weave of the hose made the original "fabric over" design obsolete in most cases.
Joe Alexander
Blacklick, Ohio