Hardwired Surge Protector..Hard To Do?

All TT's are different. I added mine a couple of weeks ago. It was very fast (about an hour and I am NOT a master electrician) Mine had a nice junction box where it was easy to get to from the storage compartment under the bunk beds. As long as you understand basic principles of "line-in and load" sides, you are good. Read directions of the best placement and how to mount.

Some TT's you may not have access to the junction box into the trailers electric, that is where some time will be spent splicing and making it safe correct