The biggest problem you have to resolve is the new location of the lower grip screw bushings. They typically wind up needing to be where the "windows" in the side of the frame are. To make it work, a filler plate on each side would have to be grafted in to fill the void and give solid steel to drill for the new GS bushing hole. It would take a lot of hand work to do this and leave no trace that it had been done.
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