Your insights into the construction, materials used, and even the specific details like the nylon nut and in-house pickups provide a comprehensive view of the instrument's features.
It sounds like you've made a thoughtful choice with the Squier Paranormal 12-string electric guitar, especially considering your desire for a 12-string instrument and the budget constraints. The Squier Paranormal series has gained popularity for offering unique and affordable instruments.
It was like a badge of honor when you grow calluses in learning and playing the guitar. I suggest not to try to peel the calluses of. It's better to use a nail file to smoothen rough callus edges.