I think I may just need to accept that the work it would take to get to this level would mean a whole life change.

It's been 20+ years since I took calculus in high school, and I haven't taken a math or science class since. I reckon that puts me at least five years behind where I'd need to be to start this course and the listed ones.

Thanks for the recommendation, and helping me assess whether it's the use I want to make of my time!