There can NOT be a spacer solution to fix wrong bolt patterns.
There are hacks on the table if you are absolutely desperate, but the right thing to do is to buy wheels with the right bolt pattern, and the right offset, upfront.
Anything else is a compromise that has its own unintended consequences (two sets of wheel studs to maintain, severely reduced offset, balancing challenges, new weak-points in tire-suspension chain). Avoid going there, unless you are absolutely desperate.
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