I wish they hadn't stopped making them, I would use them for sure BUT
From what I understand, read, and talked about with people in the know-- it'll help your knees but it's not going to be failsafe here- the point really- again as I understand it, was to release in an avalanche, some knee release was certainly possible but that wasn't the point. (could be wrong)
And unless I misunderstand you, you want to use the modern Voile bindings on a releasable base plate. It won't work, you need the special catch for the piston on the toe-piece. See:
Your best bet might be to cobble together used parts. Voile still has many spare parts for sale but not the actual binding!