Got a seeping fuel pump on my 560SL. The pumps themselves are quiet and seem to be fine. I figure that I'll go ahead and replace and seals, rubber hoses, etc. back there when I change the filter. I've never done any work back there before, so could someone please tell me what parts I ought to replace while I'm in the area and have everything apart? Should I do the valve (#14)? The other items I have marked with arrows I think I should probably replace. Let me know if that's correct and if anything else ought to be done.

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Len
'59 220S Cabriolet-SOLD and living happily in Malta
'83 240D 351,500 miles original owner-SOLD
'88 560SL 41,000 miles - totaled and parted out
https://sites.google.com/site/mercedesstuff/home
'99 E300 turbo 227,500 miles
'03 SLK320 40,000 miles - gave to my daughter
'14 Smart electric coupe 28,500 miles
'14 Smart electric cabriolet 28,500 miles
'15 Smart electric coupe 28,000 miles