I've seen some pretty inflated R129 repair costs, but I think this one takes the cake!
Valve cover gaskets-$17 ea for OEM MB from FCP Euro. With a power rachet I can swap both sides in under an hr, that includes cleanup/prep time
Hood paid $92, spend $15 for adhesive and scrape it off
Resealing crankcase covers-that job should be done w/ the valve cover gaskets anyways, $22 for the special MB sealant.
And the rear main seal leak is probably oil leak from the valve covers and breathers.
Transmission fluid and filter kit should run less than $200 for parts if you want high quality fluid like REdline
Finally-16 Bosch platniums plugs are around $130 and one of those jobs you tackle while the valve covers are off.
$250 alignment!!! I can get one in the Bay Area for less than $100 from a specialty shop.
here's what I always say-R129 will bankrupt you if you have to pay someone to do the work. DIY and save thousands.
They don't call it the "stealer" for nothing!