Nobody has asked, so I'll put in my thoughts.
What tow vehicle are you planning to use? Do you have a weight distribution system and sway control devices? Do you have any experience pulling a travel trailer (other than your previous pop-up?
If you have never used a weight distribution unit, make sure you learn not only how to install it, but also how to adjust it once the trailer has more weight in it.
Be sure to weigh your trailer (preferably once it is loaded and ready for camping) and insure that you have 12 to 15 % of that total weight on the tongue to insure your chances of sway is diminished.
Also, can't emphasize enough about the tires not being older than 5 years old. TT tires don't wear out, they time out. So you can have lots of tread left on the tires, but if the trailer has been sitting a while and exposed to the sun, the tires could be in dire need of replacing. Typically, you won't know if the trailer has a blow out on the highway, so I also recommend getting a TPMS system.
Good luck and enjoy that trailer. We sure did ours when the kids were growing up.
Ron