The Sun's 5,778 K / 27 million degrees Fahrenheit (15 million degrees Celsius) from a quick google search. I tried searching a little for what temperature a vehicle that actually exists could withstand but that was too generic for searching. I gave up though. I doubt there's anything in that direction or we'd have heard about it. They'd have something that could sit on lava that would be in use.
For a blackhole (or the Sun), there's gravity. I thought or pictured things being ripped down to atoms or more when they go into a black hole.
Here's something -- 3.83 million miles from the Sun.
https://science.howstuffworks.com/how-close-can-get-to-sun.htm"The sun's surface temperature is a stifling 10,340 degrees Fahrenheit (5,726 degrees Celsius). Curiously though, the area that surrounds the sun is even hotter."
"the corona is liable to be 300 times hotter than the surface. "
And there's radiation too I guess.
My solution? I'd just warp space so you're "there" but not affected by any of that. Yeah, that's what I do. Just warp space a bit and make a bubble.
