The chrome under the paint will be shit and as that's down to surface prep, nothing you can do to improve it.
I stripped a Raleigh Nightburner back to chrome. It was a semi translucent black finish before (called superchrome I think - so it may be different to normal paint). It looked fine. No scratches beyond what would be normal of a bike that age.
@tallsam started
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The chrome under the paint will be shit and as that's down to surface prep, nothing you can do to improve it.