That's a shame that it didn't garner mor einterest.
Personally I would have made a boardgame that works on a similar set of rules, and has a few pre assembled plastic minis. I would have advertised that in 2000 AD magazine. People are more likely to try a boardgame, which is a genre they have probably tried before, than a wargame.
From there there would be a decent chance that they would move on to the minis game if they liked the boardgame. Just an idea, but one that might have worked.