We are removing the inside of the exterior walls in our 1940s 800 sq ft house in order to air seal/insulate the walls. First removed the cheapo paneling in 2 rooms and sheetrock in 2 rooms, now removing (for later use) the original beadboard that was underneath. The problem is, the outlets were installed not originally but as cut ins and with the sheetrock & beadboard gone are just hanging there unattached to the structure. Any ideas of how to attach them to the studs without having to change out the boxes to the kind that nail to the studs? The walls will be insulated and then sheetrocked.