Creating 4 translated videos with speaking English voice-over and subtitles

After the right translation of the 4 videos available here https://paginelocali.it/creare-valore-extra-e-possibile-se-sai-come-farlo/
I'd need a voice over on them with the translated words, registered in English.

In the videos that don't have English subtitles, we need to also add English subtitles.

So, real English voice speaker on all 4 videos plus English subtitles for Video 1, Video 2 and Video 3