Quick note: I have both and the ICE 1993 version is not a reprint of the 1989 V1 Iss 1 fanzine. If I recall correctly, ICE had Grey Worlds guys "join the fold" as it were and published 3 issues under their umbrella (I helped at the combo ICE/Grey Worlds booth at events in the 90s but do admittedly have a horrible memory).
Worth-wise, I don't see them for sale often, but perhaps the Iron Crown forums might be a good place to offer them or link to your sale (if you sell it):
Shopper's GuideRegards,
Old Man