sorting two iphones sets of pics and .mov's

What I'm looking for is to create a set of pics and movies for a slide show to put on a USB stick actually in the correct sequential order they were recorded, right day and time of day etc etc. automatically and to not manually sort hundreds of files.

- Two iphones, two separate sets of photos and videos of an event

- iPhone 1 has its own naming convention, as does iPhone 2 so if you dump all the .heic pics and .mov's into one finder folder, it's not going to actually sort them in the right order, even if you choose "date created" it just lists the one category "previous 30 days". 

- importing the pics only into apple's Photos app will read the metadata and blend the two phones photos pretty much in the correct order and let you export them in that same sequential order it previews, but it won't import .mov's 

Is that as good as it gets? I can spit out a new set of pics from Photos that are auto arranged in the correct order (it changes their file name though) but then to get all the .mov's sorted into the right order is the only option to MANUALLY rename them so they snap into the right place in the list? E.G. 

001.jpeg

002.jpeg

XYZ.mov

then rename the .mov

001.jpeg

XYZ.mov 001b.mov

002.jpeg

There must be an app that can blend two diff phones sets of .heic and .mov's automatically?