To be helpful. Side load cages would work well.
On other side topics. On hot days, I drink a lot of water prior to riding.
There are the 2 extremes with heat. High humidity and low humidity. When it is high, you sweat but it doesn't evaporate all that well so you stay hot. When it is very dry, the sweat evaporates real quick and you feel cooler so you don't tend to drink as much water as you should. I found this out hiking in the mountains of New Mexico. 100 degrees but it felt like 70.
Last year on the 3rd day (78 miles and 2 passes) of an 8 day venture on dusty mountains roads, we went through water very quickly. We were fortunate enough to have found snow melt streams to run through our Sawyer filters to get water topped off. Once water gets to 90 degrees, it isn't all that great to drink. It is wet, but that's about it.