Tell us about yourself!
A manual transfer switch is really better than this example. The manual transfer switch prevents someone from accidentally switching breakers in the wrong order and causing a problem. It allows critical circuits to be powered and helps prevent human error. As for the cost difference...well personally speaking...I think my family is worth the few extra dollars.
After you make the threads put a few drops of cyanoacrylic (super glue) in the hole. It will harden the threads. Run the tap again after the glue hardens to clean up the threads. Repeat a couple of times and you will have good threads in wood.
After you make a bag and you think you have the essentials, try taking it out for a couple of days in the woods and test the things you picked. I have made more than one revision to what I thought I would really need. Changed some things, removed some and added some. I think it's better to try things out when it isn't a real emergency and find out they don't work as advertised than when your life might depend on them. Just saying....
Trick question...It may not be initialized. It may not have a drive letter assigned to it or it might be failed. You might need to ask your favorite geek for a little help.