I went to drain my air compressor tank and noticed some rust..... did a screwdriver test and it punched right through the tank. Now I need a new tank... Grainger has several.... they are not cheap.

My tank is like 10gallons so I noticed harbor freight has an 11gallon portable air tank. I am thinking of using it as my new compressor tank with some minor mods.

Any ideas?

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08 R320 CDI current

Past
95 E420
87 300D Turbo 5spd
90 300TE
83 300SD
85 300TD
92 400E
85 190D