IMHO the bottom line is payload and how much YOU want to exceed manufacturer specs.
If you want "validation" that you can "tow it" with your current 1/2 ton, you will find folks who can help you rationalize that.
If you want ammunition to upgrade your truck, that info will be provided by others.
In the end, you are the one that has to decide what your comfort level is, and whether or not you feel safe enough to put you and your family in a zone that exceeds manufacturer specifications.
There are folks here that feel comfortable doing that, and for them, depending on their experience, where they go (mountains vs flat lands), it may work out fine for them. There are others (Im in this boat), who strive to stay within ALL vehicle ratings. With my trailer (6800 lbs loaded), I was within payload for my Sierra 1500 with me, my wife, and my 30lb dog. But, when I added grandkids, bikes and cooler in the back, I was over payload by roughly 100 lbs. I decided here recently to upgrade to 3/4 ton. Did I feel safe, even exceeding payload a little (but being wihin axle ratings).. yes, I was okay. But, I knew I was going to travel more, in mountains etc.. and did not want to worry about potential problems.
In the end, you are the only one who can answer this question. There is a certain amount of responsibility and liability that comes with your decision. In the end, if something bad happens, I don't think saying "The folks on RV.NET" said it would be okay, will make anyone feel better.
Here's a really good calculator on line that you can fill in the values with what you know, adjust for any safety factor you would like, and it will tell you the max trailer weight, and max tongue weight you should fit within.
Travel trailer weight calculatorMike
Im Mike Willoughby, and I approve this message.
2017 Ram 3500 CTD (aka FRAM)
2019 GrandDesign Reflection 367BHS