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Ah no thats not what I meant .. for 52 and below 700c wheel size makes things really out of proportion and complicate geometry for no reason. @Hulsroy has done some research on this but essentially a smaller bike should have smaller wheels so the wheel size doesn't become a starting point for geometry.
So instead of building a bike with 700c max wheel size build it for 650b max and then the forks and stays should be able to take a larger 26" tyre.
You need a good builder. Put Sora on it but spend money on the frame if you want to get joy out of it.
I would talk to @Hulsroy for a bike of your size. Instead of 700c > 650b it should be 650b > 26" IMO.