Why not reach out to one of the other groups. The guys behind Sonora and Nevada wrapped there projects, could be a good place to start. Other than that, maybe expand the range of the search for help beyond the forums. Perhaps make an appeal for aid on the project. The youtuber's Retrospective Gaming or one of the larger fallout channels might be willing to aid in securing you guys a good programmer well verse in the games script. You'd have to frame the appeal right, for example 'we love the original fallout's' and avoid dogging on Bethesda (as it can be seen as harsh, mean spirited).
But honestly it sucks the mod lying dead. Why not try these discords to drum up some support;
https://discord.gg/fYk9Zu
https://discord.gg/2TWRZc
First link is for the Fallout Van Buren project, the second link is for the Sonora translation team. They last a day, ask for new ones if you need them. This would be the place I'd go to too seek help, because they might be able to help or lead you to someone who can. Gotta be someone more connect on there than on here.