I sympathize --I've been thinking about whether I could model SR with the Heroquest system adequately, for much the same reason. The problem I keep hitting is whether or not to abandon the essence/magic sub-game. As in: lots of other systems balance things in other ways, but essence (and how it plays with magic) are a major part of SR, and drive the whole cyber vs body 'ware issues, etc.
I don't know the system you are porting to, but when I have the time I'll go take a look at your OP page and make as much sense out of it as I can.