I voted no, there is no perfect translation in English, because I read Greek & Hebrew, I studied Greek under a scholar who has been on the translation committees of many modern versions, and he explained hundreds of translational issues. You can't even begin to translate Greek into English, because the mechanism for word order, syntax and grammar are totally different. Some words just not directly translatable.
German is much closer to Greek, but still not identical. (Don't forget Martin Luther translated the NT into German in 1522, and the OT in 1534! Well before the KJV! And the earliest French version was in 1530, although it was substantially revised by 1535.)
People who think the KJV is the only true Bible simply no nothing about translating. The receiving language is as important as the sending, which means the people reading need to understand it. So, a Bible from the 1600th century, with obsolete grammar and words is simply not acceptable.
As for manuscripts, do most people know the TR, or Textus Receptus, sprang into being in the 800 to 900 century in the Byzantine Empire? All the other families of texts, date back to much earlier. The TR was copied over and over, with many addition and notes in the margins creeping into the actual text. Lower textual critics can trace most of these errors back to the original mistake. The TR, is probably the worst set of manuscripts in existence. If one wants to talk about corruption, the TR (also called the "Majority Text" because they were recopied by Greek scribes, complete with errors, and springing up almost a millennium after the original autographs were written.) is the most corrupt set of manuscripts. Again, they have no origin, meaning it was translated somewhere within the Byzantine Empire very late, and became the standard for Greeks. Even Jerome's badly translated Latin version was made in the 4th century, centuries earlier than the so-called TR!
However, I agree with many others, that all bibles, modern and much older preach the true gospel, and all are valuable for every Christian to grow and learn more about God and how to serve Jesus Christ. People should read the Bible daily, in a version they understand. Stay away from cult versions, like the JW Bible. Stay away from paraphrases, until you have read a more formal translation, KJV, NASB, ESV etc) 10 or my times.
I started reading the Bible through yearly, when I was saved in 1980. I've read it in 10 different translations, the NT in Koine Greek, many books of the OT in Hebrew, the whole Bible in French, and parts in Spanish. I'm reading an updated Martin Luther German version, making good progress.
My point is that read the BOOK! Stop claiming you have the only "true" version. God has preserved his Word in many languages and translations, our job is to read it in our heart language, study it, memorize it, meditate on it, and obey it!