Possible Leialoha inks per info in The Comic Reader #134 (Aug 1976). Don Perlin was previously credited for inks. (Per Sandell ed.)
Leialoha confirmed via Facebook group Marvel Comics Fans 1961-1986 (08/24/2021) that he did not ink this cover.
Letters from: J. Doug Dennis, Mark Door(?; name printed with last letter(s) omitted), and Richard Cosson.