Your answers seem to be about whether or not there will be a collision at those time points.

My curiosity is about visualizing the orbit over time (which includes a non-zero possibility of collision).

P.S. I doubt you would disagree that speculating about where the Roadster will be when the Sun will be getting colder is fun, and not 'nobody really cares.'

Of course, such simulators are hard and expensive and mostly approximations, but doesn't hurt to ask about what options are out there.