The problem I have here is you framing the "ki blast extravagance" aspect from the perspective that its unique to and mainly derivative from the anime or manga. When the reality is that this type of action (in all its over the top stylized glory as we know it from DB) was already done in live action long before DB (and other such anime/manga before DB like Fist of the North Star). Saying that a live action work that does this style of over the top Chi-centric action is mainly of a piece with anime or manga to the point of framing it as such completely disavows and ignores the near hundred year-long history it has in live action film before it ever appeared in any Japanese anime or manga.
The Burning of the Red Lotus Temple for example, is by most historical accounts the very first ever live action Wuxia film ever made, dating back in the mid/late 1920s silent film era: that film itself utilized much the same over the top "ki blast extravagance" that you're mainly equating with anime and anime adaptations here. Aura power ups, beams of light decimating the landscape, superhuman speed and martial arts techniques, and so on. As such, it marked some of the heaviest usage of rotoscope special effects techniques in silent film up to that point in order to portray that style of fantasy martial arts Chi-channeling techniques in as over the top a fashion. Just to give you an idea of how far back and how long established this type of fantasy martial arts action goes before DB and before anime and manga.
Dragon Ball takes so much of its identity and style from live action Wuxia films (and Wuxia media and concepts in general), that discussing a live action adaptation of it relies FAR less on adapting from anime and manga than you'd expect and far, far more on going back to the live action Wuxia film sources from which DB itself had derived so much from in the first place.
You already framed this properly earlier with regards to Kenshin and the like by pointing back to countless live action Chanbara/Samurai films that Kenshin itself is derived from. Dragon Ball, on that particular score at least, is NO different from Kenshin: its just derived from a different live action genre (that of Wuxia) than Kenshin is, one that has just as much its own established live action cinematic language as does Chanbara/Samurai cinema, and one that DB just as liberally cribbed from: in both its manga AND the anime alike.