Was the game you were basing it on, Strange Eons, origionally an RPG or a straight to miniatures game and if the former how did you translate it into a miniatures game?
This is exactly the sort of thing I want to create for my WFRP games!
It's a miniatures game - have a look here: http://www.pendrakenforum.co.uk/index.php/topic,2688.0.html
which is a link to a mini-review I did of them - plus links in that thread to a number of other SA batreps too.
They're great rules - really adaptable too - definitely worth a look