Can you build a cheaper X100 with a mirrorless body and pancake lens?

One of the ones to beat: the Fujifilm X100F offers excellent image quality in a relatively compact and, dare I suggest, quite attractive package. As a bunch of (perhaps above-averagely tech devoted) photographers, one of the unifying factors in the office is our love of larger sensor, fixed prime lens cameras. Obviously there are still arguments about whether they should be 28mm or 35mm equivalent and whether the compactness and lower price of APS-C outweighs the image quality benefits...