I could do that, and I think I just might. The only problem is that Toyota doesn't really give concrete answers, except for when you should "inspect" components.
Personally, I would really only sweat two, motor and transmission oil, and my oil changing guide covers the intervals for the motor oil. I think I will include this in here, I just am nervous about giving bad advise.
There's a lot of heated discussion when to change fluids and even what fluids to use. As far as the transmission goes, personally, I would do my first flush between 40,000-50,000. If it gets past 100,000 miles, I would do a LOT of research before just doing a complete trans flush (I linked a youtube video below that goes over just that). I'm approaching 40,000 miles myself and I think I'm going to do my own very soon. Then again, I'm sure some veteran of this site will yell at me for giving bad advise, and in all fairness........ I just might be......
I'm also very busy finishing up the 2016-2019 repair manual that I'll be posting here very soon!