Contrary to popular belief the vac pods on the w126 lights pull the lights up into their normal position. Less vacuum causes them to dip. If the pods are still good and you don't care about the adjustment feature I would just run a vacuum line from them directly to the main vacuum line under the hood. Nice an easy, only requires two hoses, and if ou ever decide you want to add the adjuster it wouldn't be hard to do.

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2004 F150 4.6L -My Daily
2007 Volvo XC70 -Wife's Daily
1998 Ford F150 -Rear ended
1989 J-spec 420SEL -passed onto its new keeper
1982 BMW 733i -fixed and traded for the 420SEL
2003 Volvo V70 5 Speed -scrapped
1997 E290 Turbo Diesel Wagon -traded for above
1992 BMW 525i -traded in
1990 Silver 300TE -hated the M103
1985 Grey 380SE Diesel Conversion, 2.47 rear end, ABS -Sold, really should have kept this one
1979 Silver 300D "The Silver Slug" -Sold