The 47M in-game was specifically made from the 47N flight model. That's not debatable. They listed the wing tanks and had the fuel loading tables from the 47N for a while, until those bugs were removed. They used the 47N because it already had that horsepower (exactly the same engine, same output) and all the power curves were already modeled. They then (I infer) changed the wing area and reduced the weight.
Fact of the matter is that 109G-10s had a number of engines. The best of the best, the most polished, refined, and optomistic of examples had the same engine that the 109K4 has in-game. Even with that they still could not match its performance. The others, more representative models, would have significantly lower engine power, requiring their own power curves and their own flight model calculations (climbs, accelerations, fuel consumption, prop thrust, torque, and all that fun stuff that goes into creating a flight model from scratch).
So, no it's not the same as the P-47M example. Unless you want a 109K4 clone with G10 weapons (oh, wait, that's the entire point of this repetitive never-ending G10 request subject anyways, isn't it?)