Previous indexer suggested someone other that Ayers inked the cover but Nick Caputo believes this is Ayers' work.
Job number revealed on original art. Info per Nick Caputo: https://comics.ha.com/itm/original-comic-art/complete-story/dick-ayers-two…
Dick Ayers recalls this story as the first one he worked from Stan Lee's plot synopsis (AKA Marvel method). While The job number on the lead story is earlier (X-142) its entirely possible Ayers received both assignments around the same period and possibly worked on that story Marvel method as well. Info per Nick Caputo, March 2013.