W202 sport alloys on E420

Greetings,

Recently purchased a complete set of 7J15H2 OEM wheels from a C230K with the intention of upgrading my 1995 E420. For reference, these are polished eight-hole wheels that came with the W202 sports option (A 202 401 16 02). Discovered that all W124 front discs were not created equal (25.4mm vs older 22.4mm), and that correct fitment was not an option.

I find myself one month after the purchase with a lovely set of OEM wheels that do not fit. To make matters worse, the original issue that prompted the purchase (bent rim) has degraded ride quality even further. One of the few people other than myself who works on the E420 recommended H&R spacers to bring the offset back into compliance.

Call it a philosophical difference, but spacers are down at the bottom of my list. Hypothetically.. what would be involved in correcting the W202 wheel offset (E37) to make this work? A 5mm H&R spacer brings it back to 42mm (W124 Sportline spec), but I am not even sure that would work. Any advice from those in the know is much appreciated.

Thanks in advance.

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1995 E420 SE black/black
2004 Volvo V70R AWD