Totally understand the research fatigue, and very much agree that local service is essential. But you can narrow the field and educate yourself at the same time by visiting other local shops with quality brands.
Importantly, testing a variety of bikes close to your needs is the best defense against wanting a different bike a year later.
A detachable battery really limits your options. How important is that to you and why?
If you're willing to consider hub-drives,
Velotric and
Aventon are quality brands worth looking at. Both have large national dealer networks.
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I ride the yellow lightweight low-power
Specialized mid-drive above but am quite impressed with my wife's 50 lb, 750W, 65ish Nm
Velotric Breeze 1 (the blue one).
Removable 48V, 627 Wh UL-certified battery. Both torque- and cadence-sensing pedal assist selectable on the fly. Gobs of power with very natural power delivery in torque-sensing mode. Very responsive. Class 3.
Yes, it's a cruiser, but it's quite capable on all the surfaces you want to ride. We live in a very hilly area, and it has yet to bog down on a climb. In fact, she can leave me in the dust on any hill she wants.
I'd say well worth a test given your stated needs.