It's your watch, so do whatever will give you the most joy.
Beyond that, however, it's complicated and subjective. Repairing a movement by replacing internal parts is widely accepted. However, if the parts have a different finish, or if you replace parts with a serial number, it could affect the collectible value, if that matters to you. Replacing the dial, movement, etc. completely would be considered "frankenizing" or "optimizing" by purists, although it would probably be a matter of degree. Replacing the dial with an identical dial would be more acceptable for many. Unfortunately, since your dial is refinished, you'll probably never know if the replacement dial is identical.
At the risk of wading back into the original confusing question, if the second watch is complete except for the bezel, and has a great dial and a functional and complete movement, why not just swap in the bezel from the original watch that has the bad dial and movement?
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