I'm working on scanning in some issues of Hit Comics I've acquired this past year--all ones that are currently only available as fiche scans--and most of of them are coverless. Rather than just reuse the fiche covers, I was wondering if it's acceptable to use cover scans from other sources (mainly Heritage Auctions). In general, copies and scans that are meant to show exactly what something looks like (i.e. no substantial extra creativity went into creating them) are not themselves copyrightable, so there's no legal reason not to*, I'm just wondering if there's some kind of etiquette against it. And I'd still reuse the fiche scans of the inner covers for completion's sake.
*Yes I am sure about this, I am an IP attorney. No, the fact that HA marks their scans with a copyright legend has no legal effect. Just thought I'd get that out of the way in case anyone was about to question it.