I used a Yamiya repop body kit and Buchanon stainless spokes on my K1 restoration, misc. other reproduction parts, stamped DID rims, painted some things instead of replating, etc... Unless the goal is a pristine concours type restoration where it's being judged then I see no harm in using parts that are not 100% correct as it came form Honda but rather a faithful reproduction, close facsimile, or true to the original look or spirit with what's readily available at reasonable cost. Then again mine is a K1 and while generally more desirable than the later bikes it's not a sandcast K0 which would command a different level of restoration. These things and most others are easy enough to change back to "correct" as it came from the factory, but nice to modify or upgrade if it's gonna be a rider.