Dennis ,
That is one colour scheme I have not seen , it certainly looks nice . And I can now see why you would want the proper replacement handrails .
What I have doen with my stuff when it’s broken , especially handrails , is to get hold of the fairly readily available handrail knobs from O guage suppliers , they work OK for me .
With tegard to genuine LGB replacements , I would approach LGB either via LGBoA or direct in Germany . I have had the odd bits and pieces from LGB directly , they are generally pretty helpful . If you send a photo with the missing items highlighted , it helps . Difficult if they are missing , but I think you get the idea . If you get completely stuck , let me know ,and I will try to obtain some . I take it that you want the door handrails ?
Mike
ps , I didn’t even think of this loco . I have a couple , too . Old and stoopid , me .