It's not clear which specific 'Caine' is being referred to here. It could be the character from 'Kung Fu' or some sort of made - up or less - known reference to a character in the world of 'Pulp Fiction' that has some connection to the idea of 'Caine' from 'Kung Fu'.
You can start by finding a reliable source to access the Trigun manga. This could be through online manga platforms or buying physical copies from bookstores. Then, just sit back and enjoy the story!
Overall, Trigun Stampede adheres closely to the manga. Some minor details might differ for the sake of the adaptation's flow and visual presentation, but the core remains the same.
The Trigun manga has a considerable length. It consists of multiple volumes and chapters, but the exact number can vary depending on the specific edition and printing.