I bought an excellent set of machine finish wheels with tires from a 1998 C-class but they contact the caliper when I try to install them on a 1994 E320. What size spacer do I need and what about longer wheel bolts?

I sold a set to a 124 owner, and he told me they ended up working, but he needed different bolts (either longer or shorter, can't remember)

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former: 83 300D, 97 C230, 93 400E

current: 08 C300 Luxury , 92 500SL

I ordered these spacers: 24556659 H&R Spacer (Kit): Mercedes-Benz (5X112) 12mm and some longer bolts.