I have none of those things, but they wouldn't hurt. I just make sure to carry a few 20' recovery straps and D -Rings. For the strap make sure you buy one without metal hooks, those things can become a weapon if the hook breaks/pulls loose or something goes wrong. But these are worthless without another vehicle with you, which brings me to my next point....
You should NEVER wheel alone, especially if you are unfamiliar and uncomfortable with the terrain. Even more so if it is remote.
Trying posting here on the forum to find some guys to go with for your first time. It really helps if people know what they are doing and can give you pointers.