However the Gallians got the lanes and gates, I agree they should be similar but visibly different custom models.
The only reason all gates/lanes look alike elsewhere is because Aegira vehemently denies anyone else access to the nitty-gritty of their tech.
If the Gallians did indeed steal the technology, it stands to reason that since they built it that it will look that way.
Heck, maybe they even improved on the technology a bit.
Perhaps, there could be two different Gallic JG models, the exact same model except that the government controlled gates prominently display the Gallic logo, and the Council controlled ones look like they had the logo once but it was hastily and sloppily erased.