If your question is not about figuring out what is most cost effective in the long run, but is about peace of mind, I like the idea of renting a truck.
For one thing, you can choose a truck size to fit the job. Also, if there’s any type of mechanical problem, a good rental company will get you a replacement.
And it’s fun to drive a different vehicle and know that you don’t have to worry about its maintenance. I’m not saying that you shouldn’t treat a rental carefully. I mean that all that stuff is taken care of by the rental company.
Maybe you don’t normally take long drives in your truck and prefer to use it for local driving, hauling or whatever.
Maybe it would do absolutely no harm to your own truck but maybe you don’t want to use it for this particular purpose.
Do what feels right.