The French tested the Mini-14 extensively, the reason the 3-shot burst versions of the Ruger GB military and police versions were fielded; that was one of the French requirements. They found the Ruger barrel too light, warping severely after prolonged full-auto fire and that the rifle was too lightly constructed for armored vehicle troops.
But there is a bullpup accessory stock available for the mini-14, or better, the mini 30. The trigger pull is pretty awful but might be reworked, and a better sighting arrangement, perhaps an EO tech holographic unit, is required. But until a proper downward-ejecting bullpup can be fielded, perhaps one that feeds from the top so as to make magazine changes fast and allows both a large magazine capacity and a proper prone position, your mini might do.