According to Ken Branch, this issue was the follow up to the famous Walt Willie appearance in Second Life of Doctor Mirage #13. Also, he notes that the references for the horses were Neal Adams. The horse does look good but what happened with the cover...not pretty.
Cover to Second Life of Doctor Mirage #19
Page 1 of Second Life of Doctor Mirage #19
Page 2 of Second Life of Doctor Mirage #19
Page 3 of Second Life of Doctor Mirage #19
Now all we need to do is find the rest of the pages and the script!
UPDATE: Found some info on the solicitation as well as a low resolution image of the cover in color.
THE SECOND LIFE OF DOCTOR MIRAGE #19
by Willey & Perham, & Ken Branch
Walt Willey, star of ABC's All My Children, returns to the pages of Dr. Mirage this month! Walt, Dr. Mirage, and Carmen Mirage investigate paranormal goings-on near Walt's New Mexico ranch. Walt is co-plotting this issue to make sure that it shows as much of his "real life" as possible. Walt got lots of press attention with his last appearance in Dr. Mirage; the story was picked up by ABC, TV Guide, The New York Post, and various soap opera magazines. This appearance should be no different!