Nobody is gonna have prints for this "cross breed", so you will have to re-engineer it. Not as hard as it sounds. The front screw placement will be correct and relative to the mag placement. The rear screw placement will have to be extended to match the gen 1 spacing. Using the factory mag frame, the rear slot needs to be extended about .035". To make this look correct, you will have to make a trigger guard that has a longer tang in the front to cover the gap,(about .125"). I did this conversion awhile back on an Axis. Making a trigger guard is a lot easier than making a frame.
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The inlet won't be hard because you have the frame for dimensions. The distance between the bottom of the receiver and the frame at the screw holes are .425" on the front screw, and .940" on the rear.(pillar lengths) Use the rear action screw placement for your x,y .0, and the bottom of the receiver channel for the z.0.