I have a set of HF gauges. They worked fine for me.

I picked up a recovery unit with a vacuum pump in it. I haven't tested it yet but will soon. If it works I will most likley sell my other vacuum pump I purchased new for ~$100 last spring. I only used it twice. If you are intersted, PM me and I'll check into everything this weekend.

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2009 ML320 Bluetec
1985 300CD
1981 300TD

Past Mercedes
1979 300TD
1982 300TD
2000 E320 4Matic Wagon
1998 E430
1984 300SD
1980 300SD